taxonID	type	description	language	source
501B0F553A60217FFC31A2DB61280FF0.taxon	description	(Figs 1, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A60217FFC31A2DB61280FF0.taxon	description	CHANDLER (1989: 21); KLlMAsZEWsKl et al. (1996: 147); NOMURA & LEsCHEN (2006: 247, Figs 26, 27).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A60217FFC31A2DB61280FF0.taxon	diagnosis	Diagnosis. Body color and antenna blackish-brown or reddish-brown, usually three distal antennomeres lighter than preceding antennomeres, leg reddish-brown or yellowish- - brown, maxillary palpus and tarsus yellowish-brown, body moderately pubescent (Figs 1 A – D). Head widest across eyes, with distinct antennal tubercles and deep impression between antennal tubercles, ridge of antennal tubercles extends to eyes, deep impression present between ridges, deep impression narrowing from middle to anterior margin, with dorsal tentorial pits in circular impressions, size of dorsal tentorial pits variable, area between dorsal tentorial pits convex, in lateral view head appearing flattened and concave in middle, with ventral tentorial pits, with ocular-mandibular carinae, with gular carina extending to mouthparts; rostrum narrower than head (Figs 1 A – B, E). Antennal scape large, 1.5 times as long as pedicel, antennal club formed by apical three antennomeres, antennomere X broadest near apex or globular in shape, antennomere XI longer than wide, cone shaped (Fig. 1 E). Pronotum subhexagonal, broadest in middle or in anterior 1 / 3; transverse antebasal sulcus narrowly to broadly connected lateral antebasal foveae and median antebasal fovea, with shallow to deep median longitudinal sulcus, area around median antebasal fovea deeply impressed, area around lateral antebasal foveae deeply impressed, foveae setose or asetose (Fig. 1 A). Prosternum with distinct median prosternal carina and lateral procoxal foveae (Figs 1 B, F). Mesoventrite gradually widening to posterior margin, with median mesoventral fovea, with lateral mesoventral foveae, with lateral mesocoxal foveae (Figs 1 B, G). Metaventrite gradually widening to posterior margin, with lateral mesocoxal foveae, with lateral metaventral foveae (Figs 1 B, G). Elytra wider than pronotum, longer than wide (Fig. 1 A); each elytron with four basal elytral foveae, rounded transverse ridge often present in front of foveae, discal stria short, reaching half of elytral length, with subhumeral fovea, lateral stria entire, extending from subhumeral fovea and reaching posterior margin of elytra, with distinct cleft in lateroposterior (Figs 1 A, H). Abdomen gradually narrowing toward base (Figs 1 A – B, I – J); abdominal tergite IV – VII subequal in length, IV slightly longer, with basolateral foveae and short discal striae, median impression between striae variable in width (Figs 1 A, J); abdominal sternite IV longest, with basolateral foveae, with strong median transverse impression between basolateral foveae, sternites V – VIII subequal in length, lacking species-specific characters (Figs 1 B, I). Median lobe and parameres asymmetric; phallobase with diaphragm and basal stem; median lobe with movable structure. Sexual dimorphism. Males with a penial plate (ventrite 7 / abdominal sternite IX), females lack a penial plate; male with compound eyes large, with approximately 30 – 40 facets, female compound eyes smaller, with approximately 8 – 10 facets (Figs 1 C – D; red arrows); male wings well developed, female wings lacking.	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A60217FFC31A2DB61280FF0.taxon	distribution	Distribution. New Zealand (Fig. 16).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A65217DFC69A65A62420665.taxon	description	(Figs 2, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A65217DFC69A65A62420665.taxon	materials_examined	Type material. LECTOTYPE: J, by present designation: “ 4169. J / nr Slips 24 - 12 - 1915. / New Zealand [with red underline] Broun Coll. Brit. Mus. 1922 - 482. / Euglyptus abnormis. J / [yellow label] LECTOTYPE Euglyptus abnormis Broun sel. D. S. Chandler ’ 24 ” (BMNH, NHMUK 015009958). Additional material examined. NEW ZEALAND: SOUTH ISLAND: BR [Buller]: Paparoa Ra 6 km Buckland Peaks TK 25 Nov 1984 B. A. Holloway // & C. F. Butcher Moss & lichen 84 / 77 (1 J; NZAC). Fletchers CK 488 m, 6 km SW Rotokohu P. B 15 26 Jan 1972 [hand written] // J. C. Watt Litter 72 / 89 (1 J genitalia dissected; NZAC). Hochstetter SF 6 km S of Ahaura // Litter 71 / 148 // Beech Forest Utilization Project // 11 Nov 1971 J. C. Watt (1 J; NZAC). NN [Nelson]: Coll. T. Hall. 5.5.1916. [handwritten] // Lake Rotoiti Nelson, South Is. [handwritten] // 4169. [handwritten] // Euglyptus abnormis Broun. [handwritten] // T. Broun Collection // A. E. Brookes Collection // Probable Broun SYNTYPE Euglyptus abnormis D S Chandler 2010 (1 J; DSC). OL [Otago Lakes]: Mt. Aspiring N. P., 5.5 km nne Makarora, 330 m 11 - 17. i. 1985; Nothofagus menziesii for. A. Newton / M. Thayer 741 // berl, leaf & log litter, forest floor (2 JJ genitalia dissected; FMNH). Haast Pass road summit 8 - Feb- 09 // Sifted moss sample (1 J genitalia dissected; JTN). Makarora Bush Makarora 7 - 9 Nov 1997 (1 J slide mounted; JTN). WD [Westland]: 1.8 km n Punakaiki, 80 m 19. xii. 1984 - 20. i. 1985 hdwd. for. with nikau A. Newton / M. Thayer 718 // flight intercept (window) trap (1 J genitalia dissected, 1 J; FMNH / 1 J genitalia dissected; NZAC / 1 J; DSC). 1.5 km n Punakaiki, 50 m 19. xii. 1984 - 20. i. 1985 2 ˚ hdwd. - nikau forest A. Newton / M. Thayer 720 // flight intercept (window) trap (1 J genitalia dissected; FMNH). Okuku Scenic Reserve, 9.2 km sse Kumara, 120 m, 8 - 19. i. 1985 podocarp-hdwd. forest A. Newton / M. Thayer 731 // berl, leaf & log litter, forest floor (1 J genitalia dissected, 1 J; NZAC). Hercules Scen. Res., 12.6 km wsw Harihari, 75 m, 9 - 19. i. 1985 hdwd. - podocarp forest A. Newton / M. Thayer 734 // berl, leaf & log litter, forest floor (1 J genitalia dissected; FMNH / 1 J; DSC). Westland N. P., saddle 10.2 km ne Fox Glacier 405 m, 9 - 18. i. 1985 hdwd. 0 podocarp forest A. Newton / M. Thayer 735 // berl, leaf & log litter, forest floor (1 J genitalia dissected; FMNH). 2.7 km se Lake Moeraki 30 m, 10 - 18. i. 1985 hdwd. - podocarp forest A. Newton / M. Thayer 736 // flight intercept (window) trap (1 J; FMNH). Same locality data // Compared with Type of Euglyptus abnormis by DSChandler [green label] (1 J genitalia dissected; DSC). Mt. Aspiring N. P., Douglas Creek at Hwy. 6, 65 m 11 - 18. i. 85; Noth. menz. - hdwd. - podocarp for. A. Newton / M. Thayer 738 // flight intercept (window) trap (1 J; DSC). Hokitika Gorge 29 Jan 1978 S. B. Peck Litter // S. & J. Peck Collection (1 J slide mounted; NZAC). Haast Pass W of summit, 550 m 24 Jan 1978 G. Kuschel // sifted litter and rotten wood 78 / 52 (1 J slide mounted; NZAC). Haast Pass road summit 6 - Feb- 09 // Sifted ground moss (1 ♀; JTN).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A65217DFC69A65A62420665.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.51 – 1.61 mm (forebody 1.13 – 1.18 mm) (Fig. 2 A); antennomere IX slightly wider than long, subhexagonal, X wider than XI (8: 7), widening to apex (Fig. 2 C); pronotum gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior 1 / 3, parallel from posterior 1 / 3 to posterior margin, with shallow median longitudinal sulcus and broad transverse antebasal sulcus (Fig. 2 B); both parameres much shorter than elongate median lobe, dissimilar but both short and slightly curved to apical point; median lobe curved dorsally to right, apex slightly lobed and less sclerotized, apex slightly angled anteriorly as distinct blunt point that is most distinct in dorsal view (Figs 2 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A65217DFC69A65A62420665.taxon	description	Redescription. Body 1.51 – 1.61 mm (forebody 1.13 – 1.18 mm); head and thorax impunctate; head, thorax, abdomen, elytra, leg, and antenna reddish-brown; tarsus and maxillary palpus yellowish-brown (Fig. 2 A). Head slightly wider than long, with small dorsal tentorial pits, impression weakly defined around dorsal tentorial pits; temples gradually narrowing toward posterior margin of head capsule, with several setae; impression between antennal tubercles as wide as antennal tubercle width. Pedicel wider than antennomeres III – VIII, antennomeres III – V longer than wide, subrectangular, VI – VII as long as wide, subquadrate, VIII smallest, IX slightly wider than long, subhexagonal, X wider than XI (8: 7), widening to apex (Figs 2 A, C). Pronotum wider than head, as long as wide, narrowest at anterior margin, gradually widening from anterior margin to middle, widest in middle, slightly narrowing from middle to posterior 1 / 3, parallel from posterior 1 / 3 to posterior margin, with shallow median longitudinal sulcus and broad transverse antebasal sulcus (Fig. 2 B). Elytra and abdominal tergite s lacking any distinguishing characters (Figs 2 A, D). Male genitalia. Both parameres much shorter than elongate median lobe, dissimilar but both short and slightly curved to apical point; median lobe curved dorsally to right, apex slightly lobed and less sclerotized, apex slightly angled anteriorly as distinct blunt point that is most distinct in dorsal view (Figs 2 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A65217DFC69A65A62420665.taxon	distribution	Distribution. New Zealand (South Island: BR, NN, OL, WD; Fig. 16 A).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A67217CFC87A0F462E80C10.taxon	description	(Figs 3, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A67217CFC87A0F462E80C10.taxon	materials_examined	Type material. HOLOTYPE: J (genitalia dissected), “ NEW ZEALAND, WN, Kaitoke Regional Park, Pakuratahi Forks, 15 Apr 2005, R. Leschen, C. McGuiness, // leaf litter, RL 975, 41.03 ’ S, 175.11 ’ E ” (NZAC, NZAC 04261178). PARATYPEs: NEW ZEALAND: NORTH ISLAND: WN [Wellington]: Tararua FP, Holdsworth, 16 Apr 2005, R. Leschen, leaf litter, RL 976, 40.53 S, 175.28 E (1 J genitalia dissected; NZAC). Orongorongo V, W. N. 15 Nov 1993 // Hard beech forest litter Tullgren # 27 (1 J genitalia dissected; NZAC). South Island: BR [Buller]: Maruia Springs 25 - Apr- 77 (1 J genitalia dissected; JTN). NN [Nelson]: Slaters Road, 0.7 km s Whangamoa Saddle, 410 m 13. xii. 1984 - 4. i. 1985 Nothofagus spp forest A. Newton / M. Thayer 703 // flight intercept (window) trap (1 J genitalia dissected; FMNH / 1 J genitalia dissected; NZAC). 0.6 km e Gowanbridge, 330 m, 18. xii. 84 - 7. i. 85 Nothofagus spp. forest A. Newton / M. Thayer 717 // flight intercept (window) trap (2 JJ genitalia dissected; FMNH). SD [Marlborough Sounds]: Tennyson Inlet, east side Duncan Bay, 30 m 15. xii. 1984 - 5. i. 1985 podo. - Nothofagus for. A. Newton / M. Thayer 709 // flight intercept (window) trap (1 J slide mounted, 4 JJ genitalia dissected, 2 JJ; FMNH / 1 J genitalia dissected; NZAC / 1 J genitalia dissected; DSC). Tennyson Inlet, west side Te Mako Bay, 125 m 15. xii. 1984 - 5. i. 1985 Nothofagus-podo-hdwd. A. Newton / M. Thayer 710 // flight intercept (window) trap (1 J slide mounted, 5 JJ genitalia dissected, 2 JJ; FMNH).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A67217CFC87A0F462E80C10.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.14 – 1.16 mm (forebody 0.84 – 0.86 mm) (Fig. 3 A); antennomere X wider than long, widest at apex, as wide as XI (Figs 3 A, C); pronotum gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with broad and shallow median longitudinal sulcus, with broad transverse antebasal sulcus (Fig. 3 B); ventral view of left paramere thick, slightly curved to middle, apex bluntly rounded, with prominent preapical truncate apophysis directed to right, right paramere thin, sinuate, obscured by left paramere, broad basally, narrowing and curving ventrally to acute apex; median lobe deeply split apically, with small preapical apophysis best seen in lateral view (Figs 3 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A67217CFC87A0F462E80C10.taxon	description	Description. Body 1.14 – 1.16 mm (forebody 0.84 – 0.86 mm); head and thorax impunctate; head, thorax, and abdomen reddish-brown; elytra, leg, antennal scape, and pedicel lighter than reddish-brown; antennomeres III – VIII, tarsus, maxillary palpus, and antennomeres IX – XI yellowish-brown (Fig. 3 A). Head as wide as long, with small dorsal tentorial pits, impression weakly defined around dorsal tentorial pits; temples gradually narrowing toward posterior margin of head capsule, with several setae; impression between antennal tubercles narrow, width of impression area approximately 0.8 times as wide as antennal tubercle diameter. Pedicel wider than antennomeres III – VIII, antennomeres III – V subrectangular, V longer than wide, VI as long as wide, VII slightly larger than VI, VIII smallest, IX as long as wide, subhexagonal, X wider than long, widest at apex, as wide as XI (Figs 3 A, C). Pronotum as wide as head, as long as wide, narrowest at anterior margin, gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with broad, shallow median longitudinal sulcus and broad transverse antebasal sulcus (Fig. 3 B). Elytra and abdominal tergites without any distinguishing characters (Figs 3 A, D). Male genitalia. Ventral view of left paramere thick, slightly curved to middle, apex bluntly rounded, with prominent preapical truncate apophysis directed to right, right paramere thin, sinuate, obscured by left paramere, broad basally, narrowing and curving ventrally to acute apex; median lobe deeply split apically, with small preapical apophysis best seen in lateral view (Figs 3 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A67217CFC87A0F462E80C10.taxon	etymology	Etymology. The specific epithet is a Latin adjective referring to the bifurcate apex of the median lobe.	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A67217CFC87A0F462E80C10.taxon	distribution	Distribution. New Zealand (North Island: WN, South Island: BR, NN, SD; Fig. 16 D).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A662173FF14A2B5677D0F3F.taxon	description	(Figs 4, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A662173FF14A2B5677D0F3F.taxon	materials_examined	Type material. HOLOTYPE: J (genitalia dissected), “ NEW ZEALAND ND Waipoua SF Te Matua Ngahere 31 Oct 1985 R. C. Craw // Sifted litter 85 / 51 ” (NZAC, NZAC 04261385). PARATYPEs. NEW ZEALAND: NORTH ISLAND: AK [Auckland]: Waitakere Range, 260 m, Nohoanga Scenic Reserve, 23. xi- 8. xii. 1984 hdwd. - podocarp forest A. Newton / M. Thayer 679 // flight intercept (window) trap (1 J genitalia dissected, 1 J; FMNH). Waitakere Ra., Cascade-Kauri Park, Anderson Tr., 85 m, 23. xi- 8. xii. 1984, hdwd. - podocarp A. Newton / M. Thayer 681 // Window trap (1 J genitalia dissected; FMNH). Waitakere Ranges Reg. Pk., Upper Huia Reser. Track, II- 28 - 2010. // 4.3 km SW Waiatarua 277 m, D. S. Chandler sift leaf litter at base of Cyathea (1 J; DSC). Same locality data, except sift forest litter (1 J slide mounted; DSC). BP [Bay of Plenty]: Papatea 24 Sep 19 Oct 1992 // J. S. Dugdale Malaise trap (1 J genitalia dissected; NZAC). Mt. Te Aroha, 2.5 km SE Te Aroha, 390 m Tui Road at Tui Creek Mt. Domain Track, II- 15 - 2010, D. S. Chandler sift forest leaf litter (1 J genitalia dissected; DSC). Lake Okataina 9 Oct 1995 M-C Lariviere & A Larochelle // Litter 92 / 12 (1 J genitalia dissected; NZAC). Kaimai Ra 427 m Leyland Tramline 22 Sep 1981 B. M. May // Litter 81 / 92 (1 ♀; NZAC). P 149 [to left of specimen]. 51 moss, Waira, orua, N. I // 23. vii. 51 moss, Te Wairau, Rotorua, N. I., N. Z [handwritten] (1 J genitalia dissected; NZAC). CL [Coromandel]: Coromandel 350 m 23 Mar 1977 G. Kuschel [handwritten] // moss & lichens all ridge track (1 J; NZAC). ND [Northland]: Mangamuka Gorge S. R., 6.6 km nw Mangamuka, 70 m, 25. xi- 5. xii. 1984 hdwd. - podocarp forestA. Newton / M. Thayer 682 // flight intercept (window) trap (1 J; FMNH). Mangamuka Summit, 12.9 km nw Mangamuka, 400 m, 25. xi- 5. xii. 1984 hdwd. - podocarp forest A. Newton / M. Thayer 683 // flight intercept (window) trap (1 J genitalia dissected; FMNH / 1 J; NZAC). Omahuta Forest, Oma- huta Kauri Sanctuary, 340 m, 29. xi. 1984 kauri-podocarp-hdwd. A. Newton / M. Thayer 693 // berl. Leaf & log litter forest floor (1 J genitalia dissected; DSC). Waipoua State Forest, Kauri Ricker Track, 120 m, 26. xi- 4. xii. 1984 kauri-podocarp-hdwd. A. Newton / M. Thayer 684 // flight intercept (window) trap (3 JJ genitalia dissected; FMNH / 1 J genitalia dissected; DSC). Waipoua State Forest, Toronui Track, 120 m 26. xi- 4. xii. 1984 kauri-podocarp-hdwd. A. Newton / M. Thayer 685 // flight intercept (window) trap (1 J; FMNH). Waipoua State Forest, 0.9 km e Forest Hqtrs. 120 m, 26. xi- 4. xii. 1984 hdwd. - podocarp forest A. Newton / M. Thayer 686 // (flight intercept (window) trap (1 J; DSC). Waipoua State Forest, Wairau Summit, 400 m 27. xi- 6. xii. 1984 hdwd. - podocarp forestA. Newton / M. Thayer 687 // flight intercept (window) trap (1 J slide mounted, 1 J genitalia dissected, 5 JJ; FMNH). Waipoua State Forest, vic. Wairau Summit, 460 m, 27. xi- 4. xii. 1984 hdwd. - podocarp forest A. Newton / M. Thayer 688 // flight intercept (window) trap (1 J slide mounted, 1 J genitalia dissected, 3 JJ; FMNH). Waipoua State Forest, 0.8 km nw Wairau Summit 350 m, 27. xi- 6. xii. 1984 hdwd. - podocarp forest A. Newton / M. Thayer 689 // flight intercept (window) trap (4 JJ; FMNH). Waipoua State Forest, Waikohatu Stream bridge 300 m, 28. xi- 6. xii. 1984 kauri-hdwd. - podocarp A. Newton / M. Thayer 690 // flight intercept (window) trap (4 JJ; FMNH / 1 J; NZAC). Wai-poua St. For., 1.7 km nw Waikohatu Stream bridge 380 m, 28. xi- 6. xii. 1984 hdwd. - podocarp forest A. Newton / M. Thayer 691 // flight intercept (window) trap (2 JJ; FMNH). Oma-huta For., Picnic Area near Kauri Sanctuary, 330 m, 29. xi- 5. xii. 1984 2 º hdwd. - podocarp for A. Newton / M. Thayer 694 // flight intercept (window) trap (2 JJ; FMNH). Trounson Kauri Park, 250 m, 3 - 7. xii. 1984 kauri-podocarp-hdwd. A. Newton / M. Thayer 698 // berl, leaf & log litter, forest floor (2 JJ; FMNH). Waipoua SF, Kauri Ricker Tr. 100 m 11 - 15. iv. 80 kauri-podocarp-broadleaf A. Newton, M. Thayer // berl, leaf & log litter, forest floor (1 J slide mounted, 1 J genitalia dissected, 1 ♀; FMNH). Waipoua SF, Yakas Tree Tr. 350 m 11 - 14. iv. 1980 broadlf. - podocarp A. Newton, M. Thayer // berl, litter at bases of Metrosideros robusta trunks (2 JJ genitalia dissected, 1 ♀; FMNH). Waipoua SF Toronui Track 30 Oct 1980 G. Kuschel // Sifted decayed wood 80 / 96 (3 JJ genitalia dissected, 1 J; NZAC). Waipoua SF, 290 m Waikohatu Bridge 14 Apr 1980 J. C. Watt // Litter 80 / 53 (1 J, 1 ♀; NZAC). Waipoua SF, Waikohatu Br. 290 m 11 - 14. iv. 80. Agathis-podocarp-broadlf. A. Newton, M. Thayer (1 J genitalia dissected; FMNH). Waipoua SF Toatua Grove 25 Nov 1980 G. Kuschel // Plants and litter 80 / 117 (1 J; NZAC). Waipoua SF, 100 m Kauri Ricker TK 13 Apr 1980 J. C. Watt // Sifted litter 80 / 49 (1 ♀; NZAC). Waipoua SF Tanemahuta 29 Oct 1985 R. C. Craw & // C. Lyal Sifted litter 85 / 48 (1 J; NZAC). TO [Taupo]: Ohakune 26 Jan 1982 C. F. Butcher // Sifted litter 81 / 14 (1 J genitalia dissected; NZAC). WA [Wairarapa]: makaui n. sp. [handwritten, illegible] (1 J genitalia dissected; NZAC). WO [Waikato]: Maungatautari Main-land Reserve, XI- 15 - 2007, S. A. Forgie litter (1 J genitalia dissected; NZAC). Piripiri Caves Reserve 25 May 1986 C. L. Lyal // Leaf litter CL 480 (1 J genitalia dissected; NZAC).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A662173FF14A2B5677D0F3F.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.21 – 1.29 mm (forebody 0.92 – 0.96 mm) (Fig. 4 A); antennomere X wider than long, widest at apex, as wide as XI (Fig. 4 C); pronotum gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with median longitudinal sulcus and broad transverse antebasal sulcus (Fig. 4 B); both parameres slightly to strongly curved ventrally, left paramere slightly convex at apex in lateral view, right paramere nearly as broad as median lobe in ventral view, strongly curved ventrally in lateral view; median lobe curved dorsally, small branch extends from apical fifth, small branch with sharply bifurcate apophysis at apex arising near base of median lobe, apices of branch acutely pointed (Figs 4 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A662173FF14A2B5677D0F3F.taxon	description	Description. Body 1.21 – 1.29 mm (forebody 0.92 – 0.96 mm); head and thorax impunctate; head, thorax, abdomen, and antennal scape reddish-brown; elytra, leg, pedicel, and antennomeres III – VIII lighter; tarsus, maxillary palpus, and antennomeres IX – XI yellowish-brown (Fig. 4 A). Head as wide as long, with small dorsal tentorial pits, impression weakly defined around dorsal tentorial pits; temples gradually narrowing toward posterior margin of head capsule, with several setae; width of impression between antennal tubercles narrow, approximately 0.7 times as wide as antennal tubercle diameter. Pedicel wider than antennomeres III – VIII, antennomeres III slightly longer than wide, subrectangular, IV as long as wide, V longer than wide, rectangular, VI – VIII as long as wide, subquadrate, IX as long as wide, subhexagonal, X wider than long, widest at apex, as wide as XI (Figs 4 A, C). Pronotum slightly wider than head, as wide as long, narrowest at apex, gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with median longitudinal sulcus and broad transverse antebasal sulcus (Fig. 4 B). Elytra and abdominal tergites without any distinguishing characters (Figs 4 A, D). Male genitalia. Both parameres slightly to strongly curved ventrally, left paramere slightly convex at apex in lateral view, right paramere nearly as broad as median lobe in ventral view, strongly curved ventrally in lateral view; median lobe curved dorsally, small branch extends from apical fifth, small branch with sharply bifurcate apophysis at apex arising near base of median lobe, apices of branch acutely pointed (Figs 4 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A662173FF14A2B5677D0F3F.taxon	etymology	Etymology. The specific epithet is a Latin adjective meaning ʻnorthernʼ, referring to the distribution of this species being limited to the North Island.	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A662173FF14A2B5677D0F3F.taxon	distribution	Distribution. New Zealand (North Island: AK, BP, CL, ND, TO, WA, WO; Fig. 16 D).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A682170FF4BA08861F50DF0.taxon	materials_examined	Type material. HOLOTYPE: J (genitalia dissected), “ NEW ZEALAND DN Moodside Glen crest of spur 200 m 20 Oct 1981 // J. C. Watt Sifted litter 81 / 108 ” (NZAC, NZAC 04261172). PARATYPEs: NEW ZEALAND: SOUTH ISLAND: DN [Dunedin]: Wangaloa Open Cast Mine Rd 17 Jun 2010 // Washed soil sample. kamahi forest (1 J abdomen lost; JTN).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A682170FF4BA08861F50DF0.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.44 – 1.54 mm (forebody 1.09 – 1.11 mm) (Fig. 5 A); antennomeres X wider than long, widest at apex, as wide as XI (Fig. 5 C); pronotum gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with broad transverse antebasal sulcus (Fig. 5 B); abdominal tergite V with short, shallow discal striae, distance between discal striae of V narrow (Fig. 5 D); parameres nearly as long as median lobe, left paramere slightly and broadly convex in middle, apex acute and slightly curved ventrally, with rounded apical margin in ventral view, right paramere with apex abruptly broadened to form dorsal, apical, ventral points in lateral view; median lobe with complex structure, small branch extends from point of apical 1 / 3, apex of small branch with sharply bifurcate apophysis, median lobe with two acutely pointed lateral apophyses in addition to median longer apophysis (Figs 5 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A682170FF4BA08861F50DF0.taxon	description	Description. Body 1.44 – 1.54 mm (forebody 1.09 – 1.11 mm); head and thorax coarsely punctate; head, thorax, abdomen, elytra, leg, and antennal scape reddish-brown; pedicel and antennomeres III – VIII lighter than reddish- - brown; tarsus, maxillary palpus, and antennomeres IX – XI yellowish-brown (Fig. 5 A). Head wider than long, with small dorsal tentorial pits, weak impression around dorsal tentorial pits; temples gradually narrowing toward posterior margin of head capsule, with several setae; impression between antennal tubercles narrow, width of impression approximately 0.6 times as wide as antennal tubercle diameter. Pedicel wider than antennomeres III – VIII, antennomeres III – V subrectangular, VI as long as wide, VII larger than VI, VIII smallest, IX as long as wide, subhexagonal, X wider than long, widest at apex, as wide as XI (Figs 5 A, C). Pronotum as wide as head, longer than wide, narrowest at apex, gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with median longitudinal sulcus and broad transverse antebasal sulcus (Fig. 5 B). Elytra without any distinguishing characters (Fig. 5 A). Abdominal tergite V with short, shallow discal striae, distance between discal striae of tergite V narrow (Fig. 5 D). Male genitalia. Parameres nearly as long as median lobe, left paramere slightly and broadly convex in middle, apex acute and slightly curved ventrally, with rounded apical margin in ventral view, right paramere with apex abruptly broadened to form dorsal, apical, ventral points in lateral view; median lobe with complex structure, small branch extends from point of apical 1 / 3, apex of small branch with sharply bifurcate apophysis, median lobe with two acutely pointed lateral apophyses in addition to median longer apophysis (Figs 5 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A682170FF4BA08861F50DF0.taxon	etymology	Etymology. The specific epithet is a Latinised adjective based on the Crosby code for the region of the type locality, Dunedin.	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A682170FF4BA08861F50DF0.taxon	distribution	Distribution. New Zealand (South Island: DN; Fig. 16 A)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6A2174FEC7A3EB61AB0F10.taxon	description	(Figs 6, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6A2174FEC7A3EB61AB0F10.taxon	materials_examined	Type material. Euglyptus elegans. HOLOTYPE: J, “ [red-bordered disc] Type / 2460. / Hunua / New Zealand [with red underline] Broun Coll. Brit. Mus. 1922 - 482. / Euglyptus elegans ” (BMNH, NHMUK 015534121). Euglyptus costifer. LECTOTYPE (by present designation): “ [red-bordered disc] Type / 2725. / Pirongia / New Zealand [with red underline] Broun Coll. Brit. Mus. 1922 - 482. / Euglyptus costifer- / [yellow label] LECTOTYPE Euglyptus c ostifer Broun sel. D. S. Chandler ‘ 24 ” (BMNH, NHMUK 015534120). Additional material examined. NEW ZEALAND: NORTH ISLAND: AK [Auckland]: Kepa Bush Reserve, II- 9 - 2010 20 m, D. S Chandler, sift leaf litter along stream // Compared with type of Broun Euglyptus costifer 15 by Chandler [green label] (1 ♀; DSC). Waharau Regional Pk. nr. Waihihi Stream, 1.5 km W park entrance 56 m, IIII- 13 - 2010, D. S. Chandler, sift leaf litter along stream // Compared with type of Broun Euglyptus elegans 15 by Chandler [green label] (1 J genitalia dissected; DSC). Waitakere Ra Cascades 24 Jul 1979 // J. C. Watt and C. Gnanasunderam litter 79 / 85 (1 ♀; NZAC). Hunua Ranges Reg. Park, 7 km W Kaiaua Workman Track, 116 m, III- 27 - 2010 D. S. Chandler, sift leaf litter near stream (1 ♀; DSC). Goldie Bush Scenic Res., Mokoroa Falls Track, 6 km W Waitakere, III- 28 - 2010, 106 m D. S. Chandler, rotten wood & branch debris (1 ♀ slide mounted; DSC). Murphys Bush, 39 m, 5 km NE Manukau, III- 19 - 2010, D. S. Chan- dler & K. P. Puliafico (1 J; DSC). BP [Bay of Plenty]: Collector 14 - 3 - 1920 A. E. Brookes // Okauia Kaimai R. Matamata // A. E. Brookes Collection (1 J genitalia dissected; NZAC). Orete Forest Te Puia Hut 13 Apr 1992 G. Hall // Litter 92 / 43 (2 JJ 1 ♀; NZAC). Lottin Pt Rd Waenga Bush 16 Sep 1992 R. C. Henderson // Sifted litter 92 / 51 // Duplicate specimens in alcohol (1 ♀; NZAC). Raukumara Ra Matu Rd, 600 m 27 Feb 1979 B. M. May // Litter 79 / 35 (1 ♀; NZAC). Mt. Te Aroha, 2.5 km SE Te Aroha, 390 m Tui Road at Tui Creek Mt. Domain Track, II- 15 - 2021, D. S. Chandler sift forest leaf litter (1 J; DSC). Mamaku Bush 11 - 1 - 31 // A. E. Brookes Collection (2 JJ, two cards mounted on one pin; NZAC). CL [Coromandel]: Gt Barrier I Mt Hobson Upper Kauri Dam 11 Apr 1982 // Moss and Litter 82 / 51 (1 J genitalia dissected; NZAC). Tapu / Coroglen Rd smt, 21.11.95 // In forest litter (1 J; JTN). S. Coromandel Ra Headwaters of Grace Darling Stm 1 Dec 1988 // G. W. Ramsay Litter 88 / 1 // Duplicate specimens in alcohol (1 J slide mounted; NZAC). GB [Gisborne]: East Cape Taikawakawa Bush 15 Apr 1992 G. Hall // Litter 92 / 45 (1 ♀; NZAC). HB [Hawkes Bay]: Balls Clearing 24 Jan 1985 J. G. Charles Litter (1 J genitalia dissected, 1 J, 1 ♀; NZAC). ND [Northlnad]: Wairua Falls 8 - 5 - 21 // A. E. Brookes Collection (1 J; NZAC). Mataroa, main Trunk Line, N. IS. // Coll. J. Ford. 24 - 8 - 1917. // 2460 // Euglyptus elegans Broun. // A. E. Brookes Collection (1 J; NZAC). RI [Rangitikei]: Ruahine Ra Triplex 10 Feb 1980 C. F. Butcher // Litter 80 / 16 (1 J genitalia dissected; NZAC). Ruahine Range Shuteye 9 Feb 1980 C. Butcher // Litter and moss 80 / 10 (1 ♀; NZAC). TK [Taranaki]: 1534 // Dawsons Falls 400 m Egmont 2 Jan 90 (1 J genitalia dissected; JTN). TO [Taupo]: Kaimanawa SF 26 Mar 1978 S. B. & J. Peck Litter // S. & J. Peck Collection (1 J genitalia dissected; NZAC). Waikato-Waipakihi Junction, 32 km S of Turangi, 915 m 19 Feb 1979 // J. S. Dugdale mosses liverworts and litter 79 / 23 (1 J genitalia dissected, 1 ♀; NZAC). Waikato-Waipakihi Junction 3 km S of Turangi 915 m // 19 Feb 1979 L. A. Nound Litter 79 / 22 (1 ♀; NZAC). WN [Wellington]: Tunnel Gulley The Plateau 28 - Oct- 96 // In forest litter near stream (1 J; JTN). Days Bay 26.6.88 (1 J; JTN). Pakuratahi Forks 1 Jun 1992 (1 J genitalia dissected; JTN). Johnson’s Hill Karori 21.7.88 (1 J genitalia dissected; JTN). 1152 1 / 1 1950 R. Hornabrook (1 J genitalia dissected, 4 ♀♀; NZAC). 1027 14 / 4 1949 R. Hornabrook (1 J genitalia dissected; NZAC). Orongorongo Res. Stn 700 ’ 21. v. 69 J. S. Dugdale // Litter (1 J; NZAC). Pakuratahi Forks Kaitoke 27 - Apr- 97 // In forest leaf litter (1 J slide mounted; JTN). Akatarawa Saddle 11 XI 2015 // Forest floor litter, broadleaf forest. J Nunn (1 J slide mounted; JTN). WO [Waikato]: mt. Pirongia King country. North Is. // Ex. Broun collection. // Euglyptus costifer Broun. // 2725 // T. Broun Colleion // A. E. Brookes Collection // Possible Broun SYNTYPE Euglyptus Costifer D S Chandler 2010 [green label] (2 ♀♀; NZAC). Mt. Pirongia Wharauroa, 854 m 9 Jun 1977 B. M. May // Swept on grossy knob (1 J; NZAC). Wairangi, Waikato, Nichal, May - 31 [handwritten] (1 ♀; NZAC). South Island: BR [Buller]: Nelson Lks. NP, St. Arnaud Tr., L. Rotoiti 610 - 650 m 24 - 26. iii. 80 Nothofagus spp. A. Newton, M. Thayer // flight intercept (window) trap (1 J genitalia dissected; FMNH). NN [Nelson]: 26 - 3 - 24 E. S. Gourlay. // E. S. Gourlay Aco. 1970 Ent. Div. (1 J genitalia dissected; NZAC). Upper Maitai 3.5.50. E. S. Gourlay. (1 J genitalia dissected 1 ♀, three individuals on one pointing and middle species not Euglyptus; NZAC). Upper Maitai. 13.2.57 E. S. Gourlay (1 ♀; NZAC). Upper Maitai. 11.3.49 E. S. Gourlay. // E. S. Gourlay Aco. 1970 Ent. Div. (1 ♀; NZAC). Dun Track 701 m NN 3 Feb 62 E. S. Gourlay (1 J genitalia dissected; NZAC). SD [Marlborough Sounds]: Tennyson Inlet, east side Duncan Bay, 30 m 15. xii. 1984 - 5. i. 1985 podo. - Nothofagus for. A. Newton / M. Thayer 709 // flight intercept (window) trap (1 J; FMNH). Totaranui Saddle 27.9.51. E. S. Gourlay. [handwritten, illegible] (1 J genitalia dissected; NZAC). SI [Stewart Island]: Codfish I 25 Nov 1981 B. A. Holloway // Under bark dead fallen Dacrydium cupressinum (1 J genitalia dissected; NZAC).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6A2174FEC7A3EB61AB0F10.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.80 – 1.90 mm (forebody 1.30 – 1.40 mm), head and thorax densely punctate (distance between punctures approximately two punctures in diameter) (Fig. 6 A); antennomere X wider than XI, widening to apex (Fig. 1 E); pronotum gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with distinct median longitudinal sulcus and narrow transverse antebasal sulcus (Figs 1 A, 6 A – B); each elytron with discal stria remote from second inner fovea reaching posterior margin (Figs 1 H, 6 A); abdominal tergite V with distinct discal striae, distance between discal striae narrow than discal striae of tergite IV (Fig. 1 J); parameres dissimilar in length, left paramere curved toward middle in ventral view, in lateral view straight with apex abruptly directed ventrally, distinctly longer than right paramere; right paramere slender and sharply pointed, with short apophysis visible at base in lateral view; median lobe with apex fan-shaped, curved dorsally (Figs 6 C – H).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6A2174FEC7A3EB61AB0F10.taxon	description	Redescription. Body 1.80 – 1.90 mm (forebody 1.30 – 1.40 mm); head and thorax densely punctate (punctures separated as wide as diameter); head, thorax, and abdomen darkish-brown; elytra, leg, and antenna reddish-brown; tarsus and maxillary palpus yellowish-brown (Figs 1 A – B, 6 A). Head wider than long, with large and distinct dorsal tentorial pits, strong impression around dorsal tentorial pits (Fig. 1 E); temples gradually narrowing toward posterior margin of head capsule, with several setae; distance between antennal tubercles narrower than antennal tubercle diameter (Fig. 1 E). Pedicel longer and wider than antennomeres III – VIII, antennomeres III – VIII as long as wide, subrectangular or subquadrate, IX slightly wider than long, subhexagonal, X wider than XI (11: 8), widening to apex (Fig. 1 E). Pronotum as long as head, slightly wider than long, narrowest at anterior margin, gradually widening from anterior margin to middle, widest in middle, slightly narrowing from middle to posterior margin, with distinct median longitudinal sulcus and narrow transverse antebasal sulcus (Figs 1 A, 6 B). Elytron with discal stria remote from second inner fovea reaching posterior margin (Figs 1 A, H, 6 A). Abdominal tergite V with distinct discal striae (Fig. 1 J). Male genitalia. Parameres dissimilar in length, left paramere broadly curved to middle, apex sharply angled ventrally in lateral view; right paramere in ventral view slender and sinuate, apex sharp, directed laterally, with short apophysis at base visible in lateral view; median lobe abruptly expanded and recurved at apex, complex and curved dorsally (Figs 6 C – H).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6A2174FEC7A3EB61AB0F10.taxon	distribution	Distribution. New Zealand (North Island: AK, BP, CL, GB, HB, ND, RI, TK, TO, WN, WO, South Island: NN, SD, SI; Fig. 16 B).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6A2174FEC7A3EB61AB0F10.taxon	discussion	Comments to classification. Euglyptus costifer Broun, 1893 b, syn. nov., is here placed as the junior synonym of E. elegans Broun, 1893 a, based on examination of the types by D. S. Chandler. Additionally, as a result of comparing the original descriptions of both species, the separation of the two species was primarily based on sexual dimorphism due to the small eyes of the female for this genus.	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6E2174FED1A14B60E60D33.taxon	description	(Figs 7, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6E2174FED1A14B60E60D33.taxon	materials_examined	Type material. HOLOTYPE: J, “ [red-bordered disc] Type / 3196 / Retaruke / March 1910 / New Zealand [with red underline] Broun Coll. Brit. Mus. 1922 - 482. / Microtyrus foveicollis ” (BMNH). Additional material examined. NEW ZEALAND: NORTH ISLAND: GB [Gisborne]: L. Waikaremoana, Whareama Peninsula Dec 2004 FIT, Station 5 38.46 ’ S, 177.02 ’ E (1 J slide mounted, 4 JJ genitalia dissected, 3 JJ; NZAC). Te Urewera NP L. Waikaremoana December 2004 Station 3 FIT 38.44 S, 177.02 E (1 J genitalia dissected, 1 J; NZAC). HB [Hawkes Bay]: Kaweka Ra Makahu Hut, 975 m 13 Mar 1980 C. F. Butcher (1 J genitalia dissected; NZAC). Puketitiri Little Bush 20 Feb 1986 T. H. Davies // Malaise trap (1 J genitalia dissected; NZAC). Balls Clearing Scenic Reserve 21 Oct 1984 C. F. Butcher // Sifted litter and rotten wood 84 / 72 // Duplicate specimens in alcohol (1 J slide mounted; NZAC). TO [Taupo]: Coll. T. Broun May. 1911 [handwritten] // Retaruke nr. Erua, N. Is. [handwritten] main Trunk. R. [handwritten] // 3190 [handwritten] // Thorax grooved [handwritten, unintelligible] // Euglyptus foveicollis Broun. Var. [handwritten] // A. B. Brookes Collection (1 J genitalia dissected, 1 J; NZAC). Coll. H. S. Whitehorn May. 1911. [handwritten] // Retaruke nr. Erua N. Is. Main Trunk ♀ [handwritten] // 3196 var. [handwritten] // Euglyptus foveicollis Broun. [handwritten] // A. B. Brookes Collection (1 ♀; NZAC). Ohakune Waitonga Falls Track 4 Nov 2004 A C Eyles // Moss on ground & fallen branch Moss lichen bark live trees including Mountain beech (1 J genitalia dissected; NZAC). Kaimanawa North Forest Park, 850 m 11 Mar 1978 J. S. Dugdale // mosses 78 / 118 (1 J genitalia dissected; NZAC). WO [Waikato]: Mt Karioi nr Smt 11 Oct 1981 C. F. Butcher Litter 81 / 94 (1 J genitalia dissected; NZAC).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6E2174FED1A14B60E60D33.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.41 – 1.51 mm (forebody 1.07 – 1.11 mm) (Fig. 7 A); antennomere X as wide as XI, widening to apex (Fig. 7 C); pronotum gradually widening from anterior margin to middle, widest in middle, slightly narrowing from middle to posterior margin, with shallow median longitudinal sulcus and transverse antebasal sulcus (Fig. 7 B); both parameres similar in length, left paramere gradually narrowing to apex, with two small apical teeth in ventral view, right paramere formed as broad subtriangular plate in lateral view; median lobe with complex structure, elongated branch extends from point of apical 1 / 3, apex of branch with sharply bifurcate apophysis, median lobe forming cylindrical structure, apical margin somewhat pointed (Figs 7 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6E2174FED1A14B60E60D33.taxon	description	Redescription. Body 1.41 – 1.51 mm (forebody 1.07 – 1.11 mm); head and thorax impunctate; head, thorax, abdomen, elytra, leg, and antenna reddish-brown, tarsus and maxillary palpus yellowish-brown (Fig. 7 A). Head wider than long, with small dorsal tentorial pits, impression around dorsal tentorial pits weakly defined; temples gradually narrowing toward posterior margin of head capsule, with several setae; impression between antennal tubercles narrower than diameter of antennal tubercle. Pedicel wider than antennomeres III – VIII, antennomeres III – V longer than wide, subrectangular, VI – VII as long as wide, subquadrate, VIII smallest, IX slightly wider than long, subhexagonal, X as wide as XI (8: 8), widening to apex (Figs 7 A, C). Pronotum wider than head, slightly longer than wide, narrowest at apex, gradually widening from anterior margin to middle, widest in middle, slightly narrowing from middle to posterior margin, with shallow median longitudinal sulcus and transverse antebasal sulcus (Fig. 7 B). Elytra and abdominal tergites without any distinguishing characters (Figs 7 A, D). Male genitalia. Both parameres similar in length, left paramere gradually narrowing to apex, with two small apical teeth in ventral view, right paramere formed as broad subtriangular plate in lateral view; median lobe with complex structure, elongated branch extends from point of apical 1 / 3, apex of branch with sharply bifurcate apophysis, median lobe forming cylindrical structure, apex margin somewhat pointed (Figs 7 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6E2174FED1A14B60E60D33.taxon	distribution	Distribution. New Zealand (North Island: GB, HB, TO, WO; Fig. 16 B).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6E216AFC8FA39562300CF2.taxon	description	(Figs 8, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6E216AFC8FA39562300CF2.taxon	materials_examined	Type material. HOLOTYPE: J (genitalia dissected), “ Lake Hauroko 1369 13 / 4 1952 R. Hornabrook [1369 13 / 4 1952 handwritten] ” (NZAC, NZAC 04261379). PARATYPEs: NEW ZEALAND: SOUTH ISLAND: DN [Dunedin]: Mt Cargill, 400 m 21 Oct 1981 J. C. Watt. Sifted litter 81 / 109 (1 J slide mounted; NZAC). SD [Marlborough Sounds]: Tennyson Inlet, west side Te Mako Bay, 125 m 15. xii. 1984 - 5. i. 1985 Nothofagus- - podo-hdwd. A. Newton / M. Thayer 710 // flight intercept (window) trap (1 J slide mounted, 1 J genitalia dissected, aedeagus lost; FMNH). SL [Southland]: Princhester Base Hut, Takitimu Forest 4 / 6 / 07 // Washed soil sample beech forest 425 m (1 J genitalia dissected, 2 ♀♀; JTN).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6E216AFC8FA39562300CF2.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.43 – 1.47 mm (forebody 1.07 – 1.09 mm) (Fig. 8 A); antennomere X wider than long, widest at apex, as wide as XI (Fig. 8 C); pronotum gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with shallow median longitudinal sulcus, broad transverse antebasal sulcus connecting median antebasal fovea to lateral antebasal foveae (Fig. 8 B); both parameres similar in length, both slightly curved to apex, left paramere moderately wide, curving to right apically to form broadly truncate apex, in dorsal view with apex expanded to form large lateral and median tubercles, in lateral view with apex abruptly curved to acute point, right paramere in ventral view with thin acutely pointed apophysis evenly narrowing to apex, apex slightly curved ventrally in lateral view; median lobe longer than parameres, with elongate and acutely pointed apophysis extending from base, median lobe with major portion of even width in lateral view, forming laterally flattened lobe with apical part slightly twisted (Figs 8 E – J). Description. Body 1.43 – 1.47 mm (forebody 1.07 – 1.09 mm); head and thorax impunctate; head, thorax, elytra, abdomen, antennae, and leg reddish-brown; tibia, tarsus, and maxillary palpus lighter (Fig. 8 A). Head as wide as long, with small dorsal tentorial pits, impression weakly defined around dorsal tentorial pits; temples gradually narrowing toward posterior margin of head capsule, with several setae; impression between antennal tubercles narrow, width of impression approximately 0.7 times as wide as antennal tubercle diameter. Pedicel wider than antennomeres III – VIII, antennomeres III longer than wide, IV as long as wide, V longer than wide, VI as long as wide, VII slightly larger than VI, VIII smallest, IX as long as wide, subhexagonal, X wider than long, widest at apex, as wide as XI (Figs 8 A, C). Pronotum wider than head, longer than wide, narrowest at apex, gradually widened from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with shallow median longitudinal sulcus and transverse antebasal sulcus (Fig. 8 B). Elytra and abdominal tergites without any distinguishing characters (Figs 8 A, D). Male genitalia. Both parameres similar in length, both slightly and broadly curved to apex, left paramere in ventral view slightly curved to right, forming elongate neck with broadly truncate apex, in lateral view subtriangular, apically narrowing abruptly deflexed and acute point, right paramere thin and elongate with acutely pointed apex, apex slightly curved ventrally in lateral view; main portion of median lobe longer than parameres, with elongate and acutely pointed dorsal apophysis extending from base, larger portion laterally flattened, moderately wide and of evenly decreasing width to broadly rounded apex, apex slightly twisted in dorsal view (Figs 8 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6E216AFC8FA39562300CF2.taxon	etymology	Etymology. The specific epithet is an adjective combining the Latin words latus, - a, - um (“ broad ”) and fossa, ae, f (“ ditch ”) referring to the broad transverse antebasal sulcus of the pronotum.	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A6E216AFC8FA39562300CF2.taxon	distribution	Distribution. New Zealand (South Island: DN, FD, SD, SL; Fig. 16 B).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A70216AFECDA2D061FA097C.taxon	description	(Fig. 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A70216AFECDA2D061FA097C.taxon	materials_examined	Type material. HOLOTYPE: ♀, “ 4168. ♀. / Waimarino Jany. 1909 / New Zealand [with red underline] Broun Coll. Brit. Mus. 1922 - 482. / Euglyptus longiceps. ♀ / [white label] HOLOTYPE Euglyptus longiceps Broun ’ 17 det. DSChandler ” (BMNH, NHMUK 015534119).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A70216AFECDA2D061FA097C.taxon	discussion	Comments to classification. This species was identified using photographs of the type specimen deposited in the National History Museum in London. According to the original description, E. longiceps is similar to E. sublaevis but differs in the color of the elytra, elytral carinae, and the shapes of the head and thorax, and it has smaller eyes. When compared to E. costifer it has larger eyes and body size, with noted differences in the joints of the antenna and leg. Photographic comparisons show that E. longiceps has larger eyes than E. costifer, along with slight morphological differences. The punctures on the prothorax appear slightly larger in E. costifer, and while the temples narrowing toward the posterior margin, in E. longiceps is somewhat straight, whereas in E. costifer is slightly rounded. The small eye size is a characteristic of females in the genus Euglyptus, which corresponds with this species being described as a female. This evidence suggests that E. longiceps is a different species from E. elegans (= E. costifer) and E. sublaevis. As the type specimen of E. longiceps was not physically favorably compared with the material at hand, its taxonomic status remains unchanged. To accurately place this species, additional collections from the type locality together with morphological comparisons and anatomical study of the types are needed to be certain of placement.	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A70216AFECDA2D061FA097C.taxon	distribution	Distribution. New Zealand (North Island: TO; Fig. 16 C).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A702169FEDBA75762BB0F3C.taxon	description	(Figs 9, 15)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A702169FEDBA75762BB0F3C.taxon	materials_examined	Type material. HOLOTYPE: J, “ [red-bordered disc] Type / 3197 / Raurimu / Jany 1910 / New Zealand [with red underline] Broun Coll. Brit. Mus. 1922 - 482. / Microtyrus longicornus ” (BMNH). Additional material examined. NEW ZEALAND: NORTH ISLAND: WN [Wellington]: Tararua Forest Park Waiotauru Rd 1 Jun 1999 E. Spurr (1 J genitalia dissected; NZAC). Tararua Forest Park Waiotauru Rd 18 May 1999 E. Spurr (1 J abdomen lost; NZAC). Tararua Forest Park off Waiotauru Rd 11 Aug 1998 E. Spurr (1 J slide mounted; NZAC). SOUTH ISLAND: NN [Nelson]: Upper Maitai 7 - 3 - 49 E. S. Gourlay. [7 - 3 - 49 handwritten] (1 J genitalia dissected; NZAC). Slaters Road, 0.7 km s Whangamoa Saddle, 410 m 13. xii. 1984 - 4. i. 1985 Nothofagus spp forest A. Newton / M. Thayer 703 // flight intercept (window) trap (3 JJ genitalia dissected; FMNH). SD [Marlborough Sounds]: Tennyson Inlet, east side Duncan Bay, 30 m 15. xii. 1984 - 5. i. 1985 podo. - Nothofagus for. A. Newton / M. Thayer 709 // flight intercept (window) trap (1 J slide mounted; DSC).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A702169FEDBA75762BB0F3C.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.31 – 1.41 mm (forebody 0.99 – 1.03 mm) (Fig. 9 A); antennomere XI slightly wider than X, subhexagonal (Fig. 9 C); pronotum gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with broad median longitudinal sulcus and transverse antebasal sulcus, with short median antebasal carina from transverse antebasal sulcus to base (Fig. 9 B); both parameres similar in length, elongate, left paramere slightly curved medially to broadly rounded apex, with smooth margin in ventral view, right paramere broad at base, abruptly narrowing toward to near apex to form elongate acute point, slightly angled ventrally in lateral view; median lobe longer than parameres, broadly and evenly curved dorsally to truncate apex in lateral view, apex deflexed anteriorly in dorsal view (Figs 9 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A702169FEDBA75762BB0F3C.taxon	description	Redescription. Body 1.31 – 1.41 mm (forebody 0.99 – 1.03 mm); head and thorax impunctate; head, thorax, abdomen, and antennal scape darkish-brown, elytra, leg, pedicel, and antennomeres III – XI reddish-brown, tarsus and maxillary palpus yellowish-brown (Fig. 9 A). Head slightly wider than long, with small dorsal tentorial pits, impression around dorsal tentorial pits weakly defined; temples gradually narrowing toward posterior margin of head capsule, with several setae; impression between antennal tubercles as wide as antennal tubercle diameter. Pedicel wider and longer than antennomeres III – VIII, V longer than III – IV, VI – VIII subretangular, VI – VII slightly longer than wide, VIII as long as wide, IX – X as long as wide, subhexagonal, XI slightly wider than X (Figs 9 A, C). Pronotum as wide as head, slightly longer than wide, narrowest at apex, gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with broad median longitudinal sulcus and transverse antebasal sulcus, with short median antebasal carina extending from transverse antebasal sulcus to posterior margin (Fig. 9 B). Elytra and abdominal tergites without any distinguishing characters (Figs 9 A, D). Male genitalia. Both parameres similar in length, elongate, left paramere slightly curved medially to broadly rounded apex, with smooth margin in ventral view, right paramere broad at base, abruptly narrowing toward to near apex to form elongate acute point, slightly angled ventrally in lateral view; median lobe longer than parameres, broadly and evenly curved dorsally to truncate apex in lateral view, apex deflexed anteriorly in dorsal view (Figs 9 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A702169FEDBA75762BB0F3C.taxon	distribution	Distribution. New Zealand (North Island: WN, South Island: NN, SD; Fig. 16 A).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A732169FF14A19760E70CBC.taxon	description	(Figs 10, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A732169FF14A19760E70CBC.taxon	materials_examined	Type material. HOLOTYPE: J (genitalia dissected), “ NEW ZEALAND NN Mt Arthur area Flora Saddle 23 - III- 2011 // sifted moss sample ” (JTN). PARATYPEs. NEW ZEALAND: SOUTH ISLAND: BR [Buller]: 0.8 kmN Bullock Ck nr. Punakaiki 50 m 23. iii. 80 broadlf-nikau palm-podocp. A. Newton, M. Thayer // berl., leaf & log litter, forest floor (1 J slide mounted; FMNH). MC [Mid Canterbury]: Arthurs Pass 21 - Jan- 99 // In moss (1 J genitalia dissected; JTN). WD [Westland]: 1.8 km n Punakaiki, 80 m 19. xii. 1984 - 20. i. 1985 hdwd. for. With nikau A. Newton / M. Thayer 718 // flight intercept (window) trap (1 J slide mounted, 2 JJ genitalia dissected; FMNH). 1.5 km n Punakaiki, 50 m 19. xii. 1984 - 20. i. 1985 2 ˚ hdwd. - nikau forest A. Newton / M. Thayer 720 // flight intercept (window) trap (1 J genitalia dissected; FMNH).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A732169FF14A19760E70CBC.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.02 – 1.14 mm (forebody 0.86 – 0.89 mm) (Fig. 10 A); antennomere X wider than long, widest at apex, as wide as XI (8: 8) (Fig. 10 C); pronotum gradually widening from anterior margin to anterior 1 / 3 of pronotum length, here widest, gradually narrowing from anterior 1 / 3 to posterior margin, with shallow median longitudinal sulcus and broad transverse antebasal sulcus (Fig. 10 B); abdominal tergite V with short, shallow discal striae, width between discal striae relatively wide (Fig. 10 D); parameres strongly curved ventrally, dissimilar in length, left paramere sinuate with apex curved to right in ventral view, right paramere directed ventrally, abruptly narrowing to acutely pointed apex in lateral view; median lobe longer than parameres, trifurcate at base, apex of left apophysis briefly bifurcate, middle and right apophysis simple with sharp apex, right apophysis longest in ventral view (Figs 10 E – J distorted, rotated anterodorsally).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A732169FF14A19760E70CBC.taxon	description	Description. Body 1.02 – 1.14 mm (forebody 0.86 – 0.89 mm); head, thorax impunctate; head, thorax, elytra, abdomen, antennal scape, pedicel, antennomeres III – VIII, leg yellowish-brown, tarsus, maxillary palpus, antennomeres IX – XI lighter than yellowish-brown (Fig. 10 A). Head slightly longer than wide, with small dorsal tentorial pits, weak impression around dorsal tentorial pits; temples gradually narrowing toward posterior margin of head capsule, with several setae; impression between antennal tubercles narrow, width of impression approximately 0.8 times as wide as antennal tubercle diameter. Pedicel wider than antennomeres III – VIII, antennomeres III – V longer than wide, subrectangular, VI – VIII as long as wide, subquadrate, IX as long as wide, subhexagonal, X wider than long, widest at apex, as wide as XI (Figs 10 A, C). Pronotum slightly wider than head, slightly longer than wide, narrowest at apex, gradually widening from anterior margin to 1 / 3 anterior, widest at 1 / 3 anterior, gradually narrowing from 1 / 3 anterior to posterior margin, with shallow median longitudinal sulcus and broad transverse antebasal sulcus (Fig. 10 B). Elytra without any distinguishing characters (Fig. 10 A). Abdominal tergite V with short, shallow discal striae (Fig. 10 D; arrow). Male genitalia. Both parameres directed ventrally, dissimilar in length, left paramere sinuate with apex curved to right in ventral view, with apex medially lobed in dorsal view, right paramere directed ventrally, abruptly narrowing to acutely pointed apex in lateral view; median lobe longer than parameres, trifurcate at base, left apophysis apex briefly bifurcate, middle and right apophyses simple with sharp apex, right apophysis longest in ventral view (Figs 10 E – J distorted, rotated anterodorsally).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A732169FF14A19760E70CBC.taxon	etymology	Etymology. The specific epithet is the Latin adjective parvus (ʻsmallʼ) and refers to the small body size of this species.	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A732169FF14A19760E70CBC.taxon	distribution	Distribution. New Zealand (South Island: BR, MC, NN, WD; Fig. 16 A).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A73216FFCE2A31762EE0F7B.taxon	description	(Figs 11, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A73216FFCE2A31762EE0F7B.taxon	materials_examined	Type material. HOLOTYPE: J (genitalia dissected), “ Rarangi Marlb. 2. ix. 69 G. Kuschel // 69 / 149 ” (NZAC, NZAC 04261157). PARATYPEs: NEW ZEALAND: NORTH ISLAND: WN [Wellington]: Keith George Res Silverstream 18 - IV- 1982 (2 JJ genitalia dissected; JTN). Elsdon camp Porirua 29.5.87 T. Nunn [handwritten] // leaf litter [handwritten] (1 J genitalia dissected; JTN). 614 // Tinakori Hill Wellington 27.5.87 T. Nunn // Ant: Mesoponera // Associated ant (1 J ant card mounted on second card, genitalia dissected; JTN). 614 // Karori Reservoir 16 - Oct- 94 // In forest leaf litter (1 J genitalia dissected; JTN). Karori Reservoir 13 - Apr- 97 // Under embedded rock (1 J genitalia dissected; JTN). Johnson’s Hill Karori 17.7.88 [handwritten] (1 J slide mounted; JTN). SOUTH ISLAND: KA [Kaikoura]: Okarahia Stm Hundalees 25 - Sep- 97 (1 J genitalia dissected; JTN). Mt Fyffe, Hinau Tk, 5 Apr 2004, R. Leschen, RL 846, 42.01 ’ S, 173.35 ’ E ” (1 ♀; NZAC). NN [Nelson]: Slaters Road, 0.7 km s Whangamoa Saddle, 410 m 13. xii. 1984 - 4. i. 1985 Nothofagus spp forest A. Newton / M. Thayer 703 // flight intercept (window) trap (1 J genitalia dissected, 1 J; FMNH). SD [Marlborough Sounds]: same locality as holotype // Litter (1 J genitalia dissected, 1 J slide mounted; NZAC).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A73216FFCE2A31762EE0F7B.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.37 – 1.41 mm (forebody 1.07 – 1.09 mm) (Fig. 11 A); antennomere X wider than long, subpentagonal, slightly narrower than XI (Fig. 11 C); pronotum gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with median longitudinal sulcus and transverse antebasal sulcus, with short median antebasal carina from median antebasal impression to posterior margin (Fig. 11 B); both parameres similar in length, left paramere apex expanded and curved to right in ventral view, right paramere gradually narrowing toward apex, slightly curved ventrally in lateral view to pointed apex; median lobe longer than parameres, curved dorsally, with serrate structure near apex, apex slightly curved laterally (Figs 11 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A73216FFCE2A31762EE0F7B.taxon	description	Description. Body 1.37 – 1.41 mm (forebody 1.07 – 1.09 mm); head and thorax impunctate; head, thorax, abdomen, and antennal scape reddish-brown; elytra, leg, pedicel, and antennomeres III – XI lighter; tarsus and maxillary palpus yellowish-brown (Fig. 11 A). Head as wide as long, with small dorsal tentorial pits, impression weakly defined around dorsal tentorial pits; temples gradually narrowing toward posterior margin of head capsule, with several setae; impression between antennal tubercles broad, width of impression approximately as wide as diameter of one antennal tubercle. Pedicel wider than antennomeres III – VIII, antennomeres III – V subrectangular, V longer than wide, VI as long as wide, VII slightly larger than VI, VIII smallest, IX as long as wide, subhexagonal, X wider than long, subpentagonal, slightly narrower than XI (Figs 11 A, C). Pronotum as wide as head, as long as wide, narrowest at apex, gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with median longitudinal sulcus and transverse antebasal sulcus, with short median antebasal carina extending from median antebasal impression to base (Fig. 11 B). Elytra and abdominal tergites without any distinguishing characters (Figs 11 A, D). Male genitalia. Both parameres similar in length, apex of left paramere expanded and curved to right in ventral view, right paramere gradually narrowing toward apex, apex curved ventrally in lateral view; median lobe longer than parameres, curved dorsally, with serrate structure near apex, apex slightly curved laterally (Figs 11 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A73216FFCE2A31762EE0F7B.taxon	etymology	Etymology. The specific epithet refers to similarly punctate species, Euglyptus punctatus, being composed of Latin words punctatus (- a, - um) and similis (- is, - e); an adjective. Distribution. New Zealand (North Island: WN, South Island: KA, NN, SD; Fig. 16 C).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A75216EFED8A15B61A50FF1.taxon	description	(Figs 12, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A75216EFED8A15B61A50FF1.taxon	materials_examined	Type material. Microtyrus punctatus. LECTOTYPE (by present designation): “ [red-bordered disc] Type / 1977 / Hunua (Maketu) / New Zealand [with red underline] Broun Coll. Brit. Mus. 1922 - 482. / Microtyrus punctatus. ” (BMNH, NHMUK 015009957). Euplectus iracundus. HOLOTYPE: ♀, “ [red-bordered disc] Type / Hunua Maketu / New Zealand [with red underline] Broun Coll. Brit. Mus. 1922 - 482. / Microtyrus iracundus [sic] ” (BMNH). Additional material examined. NEW ZEALAND: NORTH ISLAND: AK [Auckland]: Mt. William Scenie Reserve, Kauri Ridge Track, 3.2 km N Pokeno 94 m, III- 29 - 2010 D. S Chandler, sift kauri podocarp, & etc. forest litter // Compared with type of Broun Euplectus iracundus ♀ by DSChandler [green label] (7 JJ 4 ♀♀; DSC). Waitakere Ranges Reg. Pk., Upper Huia Reser. Track, II- 28 - 2010, 4.3 km SW Waiatarua 277 m, D. S. Chandler, sift forest litter (5 JJ 1 ♀; DSC / 1 J; NZAC). Ex. Broun Collection. [handwritten] // Hunua Rg., Maketu. Auckland. // 2481. // Euglyptus iracundus Broun. [handwritten] // T. Broun Collection // A. E. Brookes Collection (2 ♀♀; NZAC). 2461 [handwritten] // T. Broun Collection // A. E. Brookes Collection // Possible Broun SYNTYPE Microtyrus punctatus D S Chandler 2010 [green label] (2 JJ; NZAC). BP [Bay of Plenty]: Papatea 18 Oct 1992 J. S. Dugdale // Sifted litter 92 / 66 (2 ♀♀; NZAC). Papatea 19 Oct 1992 J. S. Dugdale // Sifted litter 92 / 66 (1 J slide mounted, 2 JJ genitalia dissected; NZAC). Papatea 15 Sep 1992 G. Hall & R. C. Henderson // Sifted litter 92 / 48 (1 J genitalia dissected, 1 ♀; NZAC). Papatea 5 Nov 1993 R. C. Henderson Litter 93 / 116 (1 J; NZAC). Papatea 19 - 22 Sep 1992 J. S. Dugdale Malaise trap (1 J; NZAC). Mt. Te Aroha, 3 km E Te Aroha, Dog Kennel Flat Track, 850 m, II- 15 - 2010, D. S Chandler (4 JJ 1 ♀; DSC). Lottin Pt Rd Waenga Bush 16 Sep 1992 G. M. Barker (1 J; NZAC). CL [Coromandel]: Mt Moehau 7 Nov 1978 B. M. May moss 78 / 276 (1 J slide mounted; NZAC). RI [Rangitikei]: Pohangina Valley Totara Reserve 24 Dec 1980 J. C. Watt // Litter 80 / 164 (1 ♀; NZAC). TK [Taranaki]: Mt Messenger 610 ’ Taranaki 24. xi. 68. J. S. Dugdale (1 ♀; NZAC). WA [Wairarapa]: Castlehill / Haunu area, SE Puketoi Ra March 2010 (1 J genitalia dissected; JTN). WN [Wellington]: Orongorongo Res. Stn Well. // 21 May 69 J. S. Dugdale (1 J genitalia dissected; NZAC). Pakuratahi Forks Kaitoke 27 - Apr- 97 // In forest leaf litter (1 J; JTN). Pakuratahi Forks Kaitoke, 1.8.93 // In decayed wood (1 J genitalia dissected; JTN). Greens Road Tiritea 2 - Jun- 04 // In rewarewa litter on stream terrace (1 J; JTN). Rimutuka Summit Tk, 15 Apr 2005, R. Leschen, C. McGuiness, // leaf litter, Nothofagus, Mahoe, RL 974, 41.06 S, 175.13 E (1 J; NZAC). Tinakori Hill Wellington, 5.9.94 // In bole of dead fivefinger // 614 (1 J genitalia dissected; NZAC). nikau Res Paraparaumu 23.4.88 (1 J genitalia dissected; JTN). Wilton Bush 25.5.92 (1 J genitalia dissected; JTN). Kaitoke 17.7.88 (1 J; JTN). Wilton Bush Wellington 3.7.88 (1 J genitalia dissected; JTN). WO [Waikato]: Te Kauri Scenic Res. Nr Kawhia 20 Sep 1981 C. F. Butcher // litter 81 / 89 (1 ♀; NZAC). Herangi Ra, 500 m, above Mangatoa Saddle 9 Dec 1982 // J. S. Dugdale Litter 82 / 136 (1 J genitalia dissected; NZAC). SOUTH ISLAND: NN [Nelson]: Upper Maitai 13.2.57 E. S. Gourlay (1 J genitalia dissected, 1 J; NZAC). Upper Maitai, 3. V. 1950 E. S. Gourlay leg. (1 J genitalia dissected; NZAC). Slaters Road, 0.7 km s Whangamoa Saddle, 410 m 13. xii. 1984 - 4. i. 1985 Nothofagus spp forest A. Newton / M. Thayer 703 // flight intercept (window) trap (1 J genitalia dissected; FMNH). SD [Marlborough Sounds]: Tennyson Inlet, east side Duncan Bay, 30 m 15. xii. 1984 - 5. i. 1985 podo. - Nothofagus for. A. Newton / M. Thayer 709 // flight intercept (window) trap (3 JJ genitalia dissected; FMNH). Tennyson Inlet, west side Te Mako Bay, 125 m 15. xii. 1984 - 5. i. 1985 Nothofagus-podo-hdwd. A. Newton / M. Thayer 710 // flight intercept (window) trap (1 J; DSC / 1 J genitalia dissected; FMNH). D’Urville I Kapowai Apr 1971 F. Alack // Litter 71 / 101 (1 J; NZAC). Unknown: 31. viii. 51. moa woodholm ni-. N. I. P 182 [handwritten, illegible] (1 J; NZAC).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A75216EFED8A15B61A50FF1.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.16 – 1.26 mm (forebody 0.94 – 0.98 mm) (Fig. 12 A); head punctate (Fig. 12 A); antennomere X as long as wide, subhexagonal, XI wider than X (Fig. 12 C); pronotum gradually narrowing from middle to posterior 1 / 3, slightly narrowing from posterior 1 / 3 to posterior margin, with broad, shallow median longitudinal sulcus and broad transverse antebasal sulcus, with median antebasal carina extending from median antebasal impression to posterior margin (Fig. 12 B); both parameres similar in length, angled ventrally, left paramere elongate and narrow, apex angled to right in ventral view, right paramere gradually narrowing to pointed apex, curved ventrally in lateral view; median lobe distinct, slightly sinuate, longer than parameres, evenly curving dorsally in lateral view, apical margin thin and fan-shaped (Figs 12 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A75216EFED8A15B61A50FF1.taxon	description	Redescription. Body 1.16 – 1.26 mm (forebody 0.94 – 0.98 mm); head, thorax, abdomen, and antennal scape reddish- - brown; elytra, leg, pedicel, and antennomeres III – VIII lighter; tarsus, maxillary palpus, and antennomeres IX – XI yellowish-brown (Fig. 12 A). Head wider than long, with small dorsal tentorial pits, impression weakly defined around dorsal tentorial pits; temples gradually narrowing toward posterior margin of head capsule, posterolaterally prominently angulate, with several setae; impression between antennal tubercles as wide as antennal tubercle diameter. Pedicel wider and longer than antennomeres III – VIII, antennomeres III – VIII as long as wide, subquadrate, VI and VIII smaller than others, IX – X as long as wide, subhexagonal (Figs 12 A, C). Pronotum as wide as head, slightly wider than long, narrowest at apex, gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior 1 / 3, slightly narrowing from posterior 1 / 3 to posterior margin, with broad, shallow median longitudinal sulcus and broad transverse antebasal sulcus, with median antebasal carina extending from median antebasal impression to posterior margin (Fig. 12 B). Elytra and abdominal tergites without any distinguishing characters (Figs 12 A, D). Male genitalia. Both parameres similar in length, angled ventrally, left paramere elongate and narrow, apex angled to right in ventral view, right paramere gradually narrowing to pointed apex, curved ventrally in lateral view; median lobe distinct, slightly sinuate, longer than parameres, evenly curving dorsally in lateral view, apical margin thin and fan-shaped (Figs 12 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A75216EFED8A15B61A50FF1.taxon	discussion	Comments to classification. Euglyptus iracundus (Broun, 1893 a) syn. nov. is placed as the junior synonym of E. punctatus (Broun, 1893 a) based on the examination of types by D. S. Chandler. As both species were proposed in the same paper by BROUN (1893 a), the synonymy is proposed as first revisers act.	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A75216EFED8A15B61A50FF1.taxon	distribution	Distribution. New Zealand (North Island: AK, BP, RI, TK, WA, WN, WO, South Island: NN, SD; Fig. 16 A).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A74216CFF6CA1DA669F0F70.taxon	description	(Figs 13, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A74216CFF6CA1DA669F0F70.taxon	materials_examined	Type material. HOLOTYPE: J (genitalia dissected), “ NEW ZEALAND: BR, Nelson Lks. N. P., n slope Mt. Robert, Pinchgut Track 1290 m, 18 - 26. xii. 1984 Noth. sol. elfin for. A. Newton / M. Thayer 716 // flight intercept (window) trap ” (NZAC, NZAC 04261274). PARATYPEs: NEW ZEALAND: SOUTH ISLAND: BR [Buller]: Nelson Lks. N. P., n slope Mt. Robert, Pinchgut Track 950 m, 14. xii. 84 - 6. i. 85 Nothofagus spp. forest A. Newton / M. Thayer 707 // flight intercept (window) trap (1 J slide mounted, 1 J genitalia dissected; FMNH). Nelson Lks. N. P., n slope Mt. Robert, Pinchgut Track 1290 m, 18 - 26. xii. 1984 Noth. sol. elfin for. A. Newton / M. Thayer 716 // flight intercept (window) trap (1 J genitalia dissected, 1 J; FMNH). Same locality // carrion trap (squid) (1 J slide mounted; FMNH). Nelson Lakes NP, N slope Mt. Robert 860 m 23 - 26. iii. 80 Nothofagus spp. A. Newton / M. Thayer // berl, leaf & log litter, forest floor (1 J genitalia dissected, 2 JJ; FMNH). NN [Nelson]: Slaters Road, 0.7 km s Whangamoa Saddle, 410 m 13. xii. 1984 - 4. i. 1985 Nothofagus spp forest A. Newton / M. Thayer 703 // flight intercept (window) trap (1 J genitalia dissected; DSC)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A74216CFF6CA1DA669F0F70.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.30 – 1.34 mm (forebody 0.96 – 0.98 mm) (Fig. 13 A); antennomere X wider than long, widest at apex, wider than XI (Fig. 13 C); pronotum gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with shallow median longitudinal sulcus and broad transverse antebasal sulcus (Fig. 13 B); abdominal tergite V with short discal striae (Fig. 13 D); both parameres similar in length, elongate, left paramere slightly curved medially in ventral view, right paramere apex bifurcate in ventral view, left paramere simple, curved ventrally at apex in lateral view; median lobe longer than parameres, evenly curved dorsally, simple (Figs 13 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A74216CFF6CA1DA669F0F70.taxon	description	Description. Body 1.30 – 1.34 mm (forebody 0.96 – 0.98 mm); head and thorax impunctate; head, thorax, elytra, abdomen, and antennal scape reddish-brown; leg, antennal pedicel, and antennomeres III – IX lighter; tarsus, maxillary palpus, and antennomeres IX – XI yellowish-brown (Fig. 13 A). Head as wide as long, with small dorsal tentorial pits, impression weakly defined around dorsal tentorial pits; temples gradually narrowing toward posterior margin of head capsule, with several setae; impression between antennal tubercles narrow, width of impression approximately 0.6 times as wide as antennal tubercle diameter. Pedicel wider than antennomeres III – VIII, antennomeres III longer than wide, IV as long as wide, V longer than wide, VI – VIII as long as wide, IX as long as wide, subhexagonal, X wider than long, widest at apex, wider than XI (Figs 13 A, C). Pronotum as wide as head, slightly longer than wide, narrowest at apex, gradually widening from anterior margin to middle, widest in middle, gradually narrowing from middle to posterior margin, with shallow median longitudinal sulcus and broad transverse antebasal sulcus (Fig. 13 B). Elytra without any distinguishing characters (Fig. 13 A). Abdominal tergite V with short, shallow discal striae (Fig. 13 D; arrow). Male genitalia. Both parameres similar in length, elongate, left paramere slightly curved medially in ventral view, with small hook at apex in lateral view; right paramere apex bifurcate in ventral view; median lobe longer than parameres, broadly and evenly curved dorsally to narrowly rounded apex (Figs 13 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A74216CFF6CA1DA669F0F70.taxon	etymology	Etymology. The specific epithet is a Latinised adjective based on the type locality, Mt. Robert.	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A74216CFF6CA1DA669F0F70.taxon	distribution	Distribution. New Zealand (South Island: BR, NN; Fig. 16 C). Euglyptus sublaevis Broun, 1921 (Figs 14, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A74216CFF6CA1DA669F0F70.taxon	materials_examined	Type material. HOLOTYPE: J, “ 4167. / Rotoiti. 5.5.1916 / New Zealand [with red underline] Broun Coll. Brit. Mus. 1922 - 482. / Euglyptus sublaevis. / [white label] HOLOTYPE Euglyptus sublaevis Broun det. DSChandler ” (BMNH, NHMUK 015534122). Additional material examined. New Zealand, South Island: NN [Nelson]: Lks. NP, St. Arnaud Tr., L. Rotoiti 610 - 650 m 24 - 26. iii. 80 Nothofagus spp. A. Newton, M. Thayer // flight intercept (window) trap (1 J; FMNH).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A74216CFF6CA1DA669F0F70.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: body 1.86 mm (forebody 1.29 mm), head punctate, thorax impunctate (Fig. 14 A); antennomere X wider than XI, widening to apex (Fig. 14 C); pronotum slightly wider than head, gradually widening from anterior margin to middle, widest before middle, gradually narrowing from middle to posterior margin, with distinct median longitudinal sulcus and narrow transverse antebasal sulcus (Fig. 14 B); each elytron with discal stria remote from second inner fovea extending to posterior margin of elytron (Fig. 14 A); abdominal tergite V with distinct discal striae, distance between discal striae narrower than discal striae of tergite IV (Fig. 14 D); both parameres dissimilar in length, left paramere evenly and slightly curved medially for apical half, distinctly longer than right paramere, right paramere slender and acutely pointed apex, with long apophysis originating near base, best seen in lateral view; median lobe expanded apically, fan-shaped and curved dorsally (Figs 14 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A74216CFF6CA1DA669F0F70.taxon	description	Redescription. Body 1.86 mm (forebody 1.29 mm); head punctate, thorax impunctate; head, thorax, and abdomen darkish brown; elytra, leg, and antenna reddish-brown; tarsus and maxillary palpus yellowish-brown (Fig. 14 A). Head wider than long, with large and distinct dorsal tentorial pits, strong impression centered on dorsal tentorial pits; temples gradually narrowing toward posterior margin of head capsule, with several setae; distance between antennal tubercles narrower than antennal tubercle diameter. Pedicel longer and wider than antennomeres III – VIII, antennomeres III – VIII as long as wide, subrectangular or subquadrate, IX slightly wider than long, subhexagonal, X wider than XI (11: 9), widening to apex (Figs 14 A, C). Pronotum slightly wider than head, slightly longer than wide, narrowest at apex, gradually widening from anterior margin to middle, widest at before middle, slightly narrowing from middle to posterior margin, with distinct median longitudinal sulcus and narrow transverse antebasal sulcus (Fig. 14 B). Elytron with discal stria remote from second inner fovea extending to posterior margin (Fig. 14 A). Abdominal tergite V with distinct discal striae (Fig. 14 D). Male genitalia. Both parameres dissimilar in length, left paramere slightly curved medially in apical half, apex abruptly angulate ventrally at apex in lateral view, distinctly longer than right paramere in ventral view, right paramere slender and with apex acutely pointed, with thin elongate apophysis at basal 1 / 4, best seen in lateral view; median lobe apically fan-shaped, recurved anteriorly at apex (Figs 14 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A74216CFF6CA1DA669F0F70.taxon	distribution	Distribution. New Zealand (South Island: NN; Fig. 16 C).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A782160FF77A0F661FA0CB0.taxon	description	(Figs 15, 16)	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A782160FF77A0F661FA0CB0.taxon	materials_examined	Type material. HOLOTYPE: J (genitalia dissected), “ New Zealand SC Gunns Bush Waimate 23 - Dec- 06 // Washed soil sample broadleaf forest ” (JTN).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A782160FF77A0F661FA0CB0.taxon	diagnosis	Diagnosis. Males of this species can be distinguished from other Euglyptus species by the following combination of characters: forebody 1.15 mm; antennomere V distinctly longer than IV, X wider than long, widening to apex, slightly narrower than XI (Figs 15 A, C); pronotum gradually widening from anterior margin to middle, widest before middle, gradually narrowing from widest point to posterior margin, with median longitudinal sulcus and transverse antebasal sulcus, with median antebasal carina extending from median antebasal impression to posterior margin (Fig. 15 B); both parameres similar in length, left paramere with apical portion expanded as flat lobe, in lateral view curved ventrally to blunt point, right paramere narrow and sinuate, slightly curved ventrally; median lobe slightly twisted at base, strongly angled to left in ventral view, elongate and narrow, curved evenly dorsally in lateral view to narrow apex, apex with flat apical lobe directed medially in dorsal or ventral views (Figs 15 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A782160FF77A0F661FA0CB0.taxon	description	Description. Body 1.42 mm (not including abdominal tergites VII – VIII, removed due to dissection; forebody 1.15 mm); head and thorax impunctate; head, thorax, abdomen, and antennal scape reddish-brown; elytra, leg, pedicel, and antennomeres III – VIII lighter; tarsus, maxillary palpus, and antennomeres IX – XI yellowish-brown (Fig. 15 A). Head wider than long, with small dorsal tentorial pits, impression weakly defined around dorsal tentorial pits; temples gradually narrowing toward posterior margin of head capsule, with several setae; impression between antennal tubercles narrow, width between antennal tubercles approximately 0.6 times as wide as antennal tubercle diameter. Pedicel wider than antennomeres III – VIII, antennomeres III slightly longer than wide, subrectangular, IV as long as wide, V longer than wide, rectangular, VI – VII as long as wide, subquadrate, VIII smallest, IX as long as wide, subhexagonal, X wider than long, widening to apex, slightly narrower than XI (Figs 15 A, C). Pronotum slightly wider than head, longer than wide, narrowest at anterior margin, gradually widening from anterior margin to middle, widest before to middle, gradually narrowing from widest region to posterior margin, with median longitudinal sulcus and transverse antebasal, with median antebasal carina extending from median antebasal impression to posterior margin (Fig. 15 B). Elytra and abdominal tergites without any distinguishing characters (Figs 15 A, D). Male genitalia. Both parameres similar in length, left paramere with apical portion expanded as flat lobe, in lateral view curved ventrally to blunt point, right paramere narrow and sinuate, slightly curved ventrally, median lobe slightly twisted at base, strongly angled to left in ventral view, elongate and narrow, curved evenly dorsally in lateral view to narrow apex, apex with flat apical lobe directed medially in dorsal or ventral views (Figs 15 E – J).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A782160FF77A0F661FA0CB0.taxon	etymology	Etymology. The specific epithet is a Latinised adjective based on the type locality, Waimate.	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
501B0F553A782160FF77A0F661FA0CB0.taxon	distribution	Distribution. New Zealand (South Island: SC; Fig. 16 D).	en	Byeon, Ui-Joung, Chandler, Donald S., Leschen, Richard A. B., Park, Jong-Seok (2025): Revision of the New Zealand genus Euglyptus (Coleoptera: Staphylinidae: Pselaphinae) with eight new species. Acta Entomologica Musei Nationalis Pragae 65 (1): 31-59, DOI: 10.37520/aemnp.2025.004, URL: https://doi.org/10.37520/aemnp.2025.004
