taxonID	type	description	language	source
882C87CCCB3A3A522B3AC53A1312F9B4.taxon	materials_examined	Type species: Janssoniella caudata Kerrich, 1957, by original designation. Characteristics of the genus. Occiput without carina. Anterior margin of clypeus broadly truncate or slightly arched. Tentorial pits deep. Mandibular formula 3: 4. Antennal formula 11263, all anelli transverse, F 1 – F 6 longer than broad, F 1 with two – five rows of dense sensilla, clava without terminal and subterminal patch of micropilosity. Pronotum without carina, in dorsal view less than 0.5 times longer than broad; notauli complete; prepectus flat and uniformly reticulate; frenal line not close to hind margin of scutellum. Propodeum with median carina; nucha reduced. Fore wing mainly hyaline, with brownish tint or with fuscous cloud below stigma. Metasoma lanceolate, longer than combined length of head and mesosoma; petiole (Mt 1) transverse. Remarks. The differences between Janssoniella and the similar genus Gastracanthus Westwood, 1833 are given in the keys of Bouček & Rasplus (1991) and Heydon (1997).	en	Tselikh, E. V. (2020): Review of the eastern Palaearctic species of Janssoniella (Hymenoptera: Pteromalidae), with descriptions of four new species. Zoosystematica Rossica (China) 29 (2): 301-315, DOI: 10.31610/zsr/2020.29.2.301, URL: https://doi.org/10.31610/zsr/2020.29.2.301
882C87CCCB3A3A502B3AC0A916C8FED3.taxon	description	(Figs 1 – 9) Janssoniella albiclava Tselikh and Lee in Tselikh et al., 2017: 15 (unavailable name). Holotype. Female, South Korea, “ Yeongyang-gun, Irwol-myeon, Mt. Irwol, 36 ° 48 ′ 29 ″ N, 129 ° 05 ′ 25 ″ E, 15. VII. – 5. IX. 2014, coll. Han ” (YNU). Paratypes. 1 female, Japan, “ Kyushu, 13. IX. 1958, coll. K. Kamijo ”, “ 0000094537 Sys. Ent. Hokkaido Univ. Japan ” (EIHU); 1 male, “ Kyushu, 13. IX. 1958, coll. K. Kamijo ”, “ 0000094539 Sys. Ent. Hokkaido Univ. Japan ” (EIHU); 1 female, “ Honshu, Nachisan, 20. IX. 1965, coll. H. Takada ”, “ 0000094540 Sys. Ent. Hokkaido Univ. Japan ” (ZISP). Description. Female. Body length 5.40 – 7.50 mm; fore wing length 3.90 – 5.60 mm. Head dark metallic blue-green with diffuse coppery lustre. Antenna with scape and clava yellow, pedicel dark brown, flagellum black. Mesosoma dark metallic green with diffuse coppery and violaceous lustre. All coxae basally metallic green, apically yellowish-brown, femora, tibiae and tarsi yellow, last segment of tarsus yellowish-brown. Fore wing with brownish tint, venation yellowish-brown. Metasoma with Mt 2 basally metallic green, apically yellowish-brown, Mt 3 yellowish-brown, other tergites dark brown; ovipositor sheath black. Sculpture of head dorsally weakly reticulate, clypeus smooth and shining, malar space alutaceous. Pronotum alutaceous; mesoscutum reticulate; axilla and scutellum finely reticulate; frenal area irregularly reticulate; lateral areas of propodeum alutaceous, but part near median carina smooth. Metasoma smooth and shining. Head in dorsal view 2.20 – 2.30 times as broad as long and 1.20 – 1.33 times as broad as mesoscutum; in front view 1.36 – 1.40 times broader than high. POL 1.20 – 1.30 times OOL. Eye height 1.30 times eye length and 3.25 – 3.47 times as long as malar space. Distance between antennal toruli and lower margin of clypeus 0.67 – 0.82 times distance between antennal toruli and median ocellus. Antenna with scape 0.60 – 0.70 times as long as eye height and 0.75 – 0.90 times as long as eye length; pedicel 1.40 – 1.43 times as long as broad and 0.34 – 0.38 times as long as F 1; combined length of pedicel and flagellum 1.70 – 1.85 times breadth of head; flagellum almost filiform; all anelli transverse; F 1 3.25 – 3.60 times as long as broad, with four rows of dense sensilla; F 2 – F 6 longer than broad. Mesosoma 1.94 – 2.03 times as long as broad. Scutellum 1.13 – 1.20 times as long as broad. Propodeum medially 0.25 – 0.30 times as long as scutellum, median carina complete and straight, nucha absent. Fore wing 2.90 – 3.30 times as long as maximum width; basal cell entirely pilose; speculum closed; costal cell with two complete rows of setae; marginal vein 0.70 – 0.78 times as long as postmarginal vein and 2.10 – 2.25 times as long as stigmal vein. Metasoma lanceolate, 2.10 – 2.30 times as long as mesosoma and 1.60 – 1.80 times as long as mesosoma and head; Mt 8 2.60 – 3.60 times longer than maximum width; ovipositor sheath 0.50 – 0.57 times length of Mt 8. Male. Body length 2.55 mm; fore wing length 2.30 mm. Antenna with scape yellowish-brown, pedicel and flagellum dark brown. Fore coxa metallic green with diffuse coppery lustre, mid and hind coxae brown with diffuse violaceous lustre. Metasoma with Mt 2 – Mt 8 brown. Sculpture of head dorsally, mesoscutum, scutellum and axilla reticulate. Lateral areas of propodeum finely reticulate. Head in dorsal view 1.4 times as broad as mesoscutum. Eye height 1.25 times eye length and 4.00 times as long as malar space. Antenna with scape 0.55 times as long as eye height and 0.68 times as long as eye length; pedicel 1.16 times as long as broad and 0.41 times as long as F 1; F 1 1.08 times as long as broad. Propodeum medially 0.44 times as long as scutellum. Marginal vein of fore wing about 0.86 times as long as postmarginal vein and 2.38 times as long as stigmal vein. Metasoma about as long as mesosoma and 0.73 times as long as mesosoma and head. Otherwise similar to female. Comparative diagnosis. This species is similar to J. magna and J. rachini in having the fore wing with brownish tint and without fuscous cloud below stigma, propodeum medially 0.20 – 0.30 times as long as scutellum, metasoma with Mt 8 2.60 – 5.60 times longer than maximum width. However, J. albiclava has the antennal clava yellow (vs dark- er, dark brown or black), basal cell of fore wing entirely pilose (vs pilose apically), sculpture of frenal area irregularly reticulate, lateral areas of propodeum alutaceous, part near median carina smooth (vs finely reticulate), Mt 2 basally metallic green, apically yellowish-brown, Mt 3 yellowish-brown (vs dark metallic green). Etymology. The name is derived from the Latin “ albus ”, meaning “ light coloured ”, and “ clava ”, meaning “ club ”, referring to the distinctive light coloured antennal clava. Distribution. South Korea, Japan. Biology. Unknown.	en	Tselikh, E. V. (2020): Review of the eastern Palaearctic species of Janssoniella (Hymenoptera: Pteromalidae), with descriptions of four new species. Zoosystematica Rossica (China) 29 (2): 301-315, DOI: 10.31610/zsr/2020.29.2.301, URL: https://doi.org/10.31610/zsr/2020.29.2.301
882C87CCCB383A502883C74C1580F9D3.taxon	description	(Figs 10 – 16) Janssoniella caudata Kerrich in Kerrich & Graham, 1957: 304 – 305, 306; holotype, female (LUZN, examined). Type material examined. Holotype. Female, Sweden, “ SWEDEN, Skåne, Ringsjö, female, coll. C. G. Thomson ” (LUZN). Additional material examined. Russia, Irkutsk Prov., Listvyanka Vill., Great Baikal Trail, 51 ° 51 ′ 37 ″ N, 104 ° 56 ′ 24 ″ E, 25 – 26. VII. 2019, coll. E. Tselikh, 2 females; Sakhalin Prov., Yuzhno-Sakhalinsk Town, 30. VI. 1983, coll. V. Kostyukov, 1 female; Kunashir Island, Alekhino Vill., 13 – 14. V. 1973, coll. I. Kerzhner, 1 female (all in ZISP). Distribution. United Kingdom, Sweden, Germany, Czech Republic, Russia, Canada, USA. Biology. Primary parasitoid of Ceracis thoracicornis (Ziegler, 1845) and Cis sp. (Coleoptera: Ciidae) and possibly secondary parasitoid of Eubazus (Aliolus) tomoxiae (Rohwer, 1915) (Hymenoptera: Braconidae) (Heydon, 1997). Comparative diagnosis. This species is similar to J. kawabatai in having the fore wing hyaline and body length 2.10 – 4.60 mm. However, J. caudata has the basal cell of fore wing bare or with three setae (vs pilose apically), costal cell with one complete row of setae (vs two complete rows), F 1 with two rows of dense sensilla (vs three rows), head in dorsal view distinctly emarginate (vs shallowly emarginate). Remarks. The characters of the eastern Palaearctic specimens of this species fully match those of the European (Kerrich & Graham, 1957) and North American specimens (Heydon, 1997).	en	Tselikh, E. V. (2020): Review of the eastern Palaearctic species of Janssoniella (Hymenoptera: Pteromalidae), with descriptions of four new species. Zoosystematica Rossica (China) 29 (2): 301-315, DOI: 10.31610/zsr/2020.29.2.301, URL: https://doi.org/10.31610/zsr/2020.29.2.301
882C87CCCB383A5B2883C04C16DBFBEA.taxon	description	(Figs 17 – 24) Holotype. Female, South Korea, “ Danyanggun Cheondongri, Mt. Sobaek bakbusa (M. T.), 1. X. – 14. XI. 2005 ” (collector unknown) (ZISP). Paratype. 1 female, Japan, “ Japan, Yuwan, Amamioshima, 1. V. 1959, coll. K. Kamijo, female ”, “ 0000094535 Sys. Ent Hokkaido Univ. Japan ” (EIHU). Description. Female. Body length 4.50 – 4.60 mm; fore wing length 3.00 – 3.10 mm. Head dark metallic green with diffuse coppery lustre. Antenna with scape and pedicel yellowish-brown, flagellum and clava brown. Mesosoma metallic blue-green with diffuse coppery lustre. Fore and hind coxae metallic green basally and yellowish-brown apically, mid coxa yellowish-brown, femur, tibia and tarsus yellow, last segment of tarsus yellowish-brown. Fore wing hyaline, venation yellowish-brown. Metasoma with Mt 2 metallic green, Mt 3 – Mt 8 brown with diffuse coppery or violaceous lustre; ovipositor sheath black. Sculpture of head dorsally reticulate, clypeus smooth and shining, malar space weakly reticulate. Pronotum, mesoscutum and frenal area reticulate, axilla and scutellum finely reticulate, lateral areas of propodeum weakly reticulate. Metasoma weakly alutaceous or smooth and shining. Head in dorsal view 2.25 – 2.40 times as broad as long and 1.33 – 1.38 times as broad as mesoscutum; in frontal view 1.30 times broader than high. POL 1.10 – 1.22 times OOL. Eye height 1,27 – 1.30 times eye length and 2.85 – 3.10 times as long as malar space. Distance between antennal toruli and lower margin of clypeus 0.72 times distance between antennal toruli and median ocellus. Antenna with scape 0.63 – 0.70 times as long as eye height and 0.91 times as long as eye length; pedicel 1.45 – 1.59 times as long as broad and 0.40 times as long as F 1; combined length of pedicel and flagellum 1.70 – 1.80 times breadth of head; flagellum almost filiform; all anelli transverse; F 1 2.83 – 2.85 times as long as broad, with three rows of dense sensilla; F 2 – F 6 longer than broad. Mesosoma 2.0 times as long as broad. Scutellum 1.20 – 1.26 times as long as broad. Propodeum medially 0.33 – 0.35 times as long as scutellum; median carina complete and straight; nucha absent. Fore wing 2.63 – 2.75 times as long as maximum width; basal cell pilose apically; speculum closed; costal cell with two complete rows of setae; marginal vein 0.78 – 0.86 times as long as postmarginal vein and 2.26 – 2.50 times as long as stigmal vein. Metasoma lanceolate, 2.20 – 2.26 times as long as mesosoma and 1.50 – 1.57 times as long as mesosoma and head; Mt 8 2.0 – 3.0 times longer than its maximum width; ovipositor sheath 0.55 – 0.70 times length of Mt 8. Male. Unknown. Comparative diagnosis. This species is similar to J. caudata in having the fore wing hyaline and body length 2.10 – 4.60 mm. However, J. kawabatai has the basal cell of fore wing pilose apically (vs bare or with three setae), costal cell with two complete rows of setae (vs one complete row), F 1 with three rows of dense sensilla (vs two rows), head in dorsal view shallowly emarginate (vs distinctly emarginate). Janssoniella kawabatai is also similar to Holarctic J. intermedia in having the fore wing hyaline, costal cell with two complete rows of setae, F 1 with three rows of dense sensilla, and the head in dorsal view shallowly emarginate. However, J. kawabatai has the basal cell pilose apically (vs bare), marginal vein 2.26 – 2.50 times as long as stigmal vein (vs 1.80 – 2.0 times), fore and hind coxae metallic green basally and yellowish-brown apically, mid coxa yellowish-brown (vs all coxae with orange tint). Etymology. The species is named in honour of the famous Japanese writer, Yasunari Kawabata. Distribution. South Korea, Japan. Biology. Unknown.	en	Tselikh, E. V. (2020): Review of the eastern Palaearctic species of Janssoniella (Hymenoptera: Pteromalidae), with descriptions of four new species. Zoosystematica Rossica (China) 29 (2): 301-315, DOI: 10.31610/zsr/2020.29.2.301, URL: https://doi.org/10.31610/zsr/2020.29.2.301
882C87CCCB333A5A288CC21716C8FDB3.taxon	description	(Figs 25 – 31) Janssoniella magna Tselikh and Lee in Tselikh et al., 2017: 15 – 17 (unavailable name). Holotype. Female, South Korea, “ Pocheon-si, Soheur-eup, Jikdong-ri 51 - 7, Korea National Arboretum, 37 ° 45 ′ 01 ″ N, 127 ° 08 ′ 34 ″ E, 29. VIII. – 14. X. 2013, coll. I. Kim ” (YNU). Paratype. Female, Russia, Primorskiy Terr., Ekaterinovka Vill., 24. VIII. 2001, coll. S. Belokobylskij (ZISP). Description. Female. Body length 7.50 – 8.40 mm; fore wing length 4.70 – 5.30 mm. Head and mesosoma dark metallic blue-green with diffuse coppery lustre. Antenna with scape metallic green in upper part and yellowish-brown in lower part, pedicel brown, flagellum and clava black. Fore and hind coxae metallic green basally and yellowish-brown apically, mid coxa yellowish-brown, femur, tibia, and tarsus yellow, last segment of tarsus yellowish-brown. Fore wing with brownish tint, venation brown. Metasoma dark metallic blue-green with diffuse coppery lustre; ovipositor sheath black. Sculpture of head dorsally reticulate, clypeus weakly alutaceous and shining, malar space finely reticulate. Pronotum alutaceous and finely reticulate in lateral parts, mesoscutum, axilla, scutellum, frenal area and lateral areas of propodeum finely reticulate. Metasoma weakly alutaceous or smooth and shining. Head in dorsal view 2.05 – 2.10 times as broad as long and 1.02 – 1.06 times as broad as mesoscutum; in frontal view 1.20 – 1.30 times broader than high. POL 1.35 – 1.55 times OOL. Eye height 1.35 – 1.40 times eye length and 3.0 – 3.1 times as long as malar space. Distance between antennal toruli and lower margin of clypeus 0.60 – 0.73 times distance between antennal toruli and median ocellus. Antenna with scape 0.66 – 0.70 times as long as eye height and 0.90 times as long as eye length; pedicel 1.45 – 1.55 times as long as broad and 0.36 – 0.4 times as long as F 1; combined length of pedicel and flagellum 1.80 – 1.85 times breadth of head; flagellum almost filiform; all anelli transverse; F 1 3.55 – 3.66 times as long as broad, with four – five rows of dense sensilla; F 2 – F 6 longer than broad. Mesosoma 1.65 – 1.80 times as long as broad. Scutellum 1.10 – 1.25 times as long as broad. Propodeum medially 0.25 times as long as scutellum; median carina complete and straight, nucha absent. Fore wing 2.80 – 3.10 times as long as maximum width; basal cell pilose apically; speculum closed; costal cell with three complete rows of setae; marginal vein 0.60 – 0.70 times as long as postmarginal vein and 1.86 – 2.00 times as long as stigmal vein. Metasoma lanceolate, 2.70 – 2.80 times as long as mesosoma and 1.80 – 2.00 times as long as mesosoma and head; Mt 8 4.6 – 5.6 times longer than maximum width; ovipositor sheath 0.30 – 0.43 times length of Mt 8. Male. Unknown. Comparative diagnosis. This species is similar to J. rachini in having the antennal clava darker, dark brown or black, basal cell pilose apically, sculpture of frenal area and lateral areas of propodeum finely reticulate, Mt 2 and Mt 3 dark metallic green. However, J. magna has the eye height 3.00 – 3.10 times as long as malar space (vs 2.13 – 2.25 times), antennal scape entirely yellowish-brown (vs yellowish-brown basally and metallic green apically), F 1 3.55 – 3.66 times as long as broad (vs 2.35 – 2.65 times), metasoma 2.70 – 2.80 times longer than mesosoma (vs 2.15 – 2.25 times), Mt 8 4.60 – 5.60 times longer than maximum width (vs 2.60 – 3.80 times), fore and hind coxae metallic green basally and yellowish-brown apically, mid coxa yellowish-brown (vs all coxae metallic green). Etymology. The name is derived from the Latin “ magnus ”, meaning “ great ”, referring to the large size of this species. Distribution. South Korea, Russia (Far East). Biology. Unknown.	en	Tselikh, E. V. (2020): Review of the eastern Palaearctic species of Janssoniella (Hymenoptera: Pteromalidae), with descriptions of four new species. Zoosystematica Rossica (China) 29 (2): 301-315, DOI: 10.31610/zsr/2020.29.2.301, URL: https://doi.org/10.31610/zsr/2020.29.2.301
882C87CCCB323A5F2883C4AC16DBFCC7.taxon	description	(Figs 32 – 39)	en	Tselikh, E. V. (2020): Review of the eastern Palaearctic species of Janssoniella (Hymenoptera: Pteromalidae), with descriptions of four new species. Zoosystematica Rossica (China) 29 (2): 301-315, DOI: 10.31610/zsr/2020.29.2.301, URL: https://doi.org/10.31610/zsr/2020.29.2.301
882C87CCCB323A5F2883C4AC16DBFCC7.taxon	description	Paratype. 1 female, Japan, “ Sapporo, Hokkaido, 7. VII. 1952, coll. T. Tomioka ” (EIHU). Additional material examined. Japan, “ Hokkaido, Sapporo, 21. V. 1967, coll. K. Kusig. [emati] male ”, “ 0000094541 Sys. Ent. Hokkaido Univ. Japan ”, “ Janssoniella notata, male, det. K. Kamijo 1987 ”, 1 male; “ Japan, Hokkaido, Maruyama, Sapporo, 18. VII. 1993, coll. E. Ikeda female ”, “ 0000094532 Sys. Ent. Hokkaido Univ. Japan ”, 1 female (all in EIHU). Description. Female. Body length 4.60 – 6.20 mm; fore wing length 3.10 – 3.60 mm. Head and mesosoma dark metallic green-blue with diffuse coppery lustre. Antenna with scape yellowish-brown, pedicel brown, flagellum and clava dark brown or black. All coxae metallic green; femur brown, tibia and tarsus yellow, last segment of tarsus yellowish-brown. Fore wing with light brownish tint and with fuscous cloud below stigma, venation yellowish-brown. Metasoma with Mt 2 metallic green, Mt 3 – Mt 8 brown with diffuse coppery and violaceous lustre; ovipositor sheath black. Sculpture of head dorsally reticulate, clypeus weakly alutaceous, malar space weakly reticulate. Pronotum, mesoscutum and axilla reticulate, scutellum, frenal area and lateral areas of propodeum finely reticulate. Metasoma weakly alutaceous or smooth and shining. Head in dorsal view 1.85 – 2.00 times as broad as long and 1.12 – 1.20 times as broad as mesoscutum; in frontal view 1.20 – 1.26 times broader than high. POL 1.45 – 1.52 times OOL. Eye height 1.30 – 1.35 times eye length and 2.30 – 2.50 times as long as malar space. Distance between antennal toruli and lower margin of clypeus 0.58 – 0.70 times distance between antennal toruli and medi- an ocellus. Antenna with scape 0.60 – 0.70 times as long as eye height and 0.90 – 1.00 times as long as eye length; pedicel 1.50 – 1.70 times as long as broad and 0.42 – 0.50 times as long as F 1; combined length of pedicel and flagellum 1.60 – 1.77 times breadth of head; flagellum almost filiform; all anelli transverse; F 1 2.60 – 3.00 times as long as broad, with three – four rows of dense sensilla; F 2 – F 6 longer than broad. Mesosoma 1.76 – 2.00 times as long as broad. Scutellum 1.20 – 1.30 times as long as broad. Propodeum medially about 0,38 – 0.40 times as long as scutellum; median carina complete and straight; nucha absent. Fore wing 2.53 – 2.60 times as long as maximum width; basal cell pilose apically; speculum closed; costal cell with two complete rows setae; marginal vein 0.80 – 0.85 times as long as postmarginal vein and 1.70 – 1.88 times as long as stigmal vein. Metasoma lanceolate, 2.10 – 2.15 times as long as mesosoma and 1.60 – 1.66 times as long as mesosoma and head; Mt 8 1.76 – 1.85 times longer than maximum width; ovipositor sheath 0.43 – 0.63 times length of Mt 8. Male. Body length 3.40 mm; fore wing length 2.40 mm. Head, mesosoma and metasoma dark metallic green with diffuse coppery lustre. Antenna with scape and pedicel dark metallic green, flagellum and clava dark brown. All femora metallic-green. Fore wing with light brownish tint and without fuscous cloud below stigma, venation yellowish-brown. Sculpture of clypeus weakly alutaceous and shining, malar space alutaceous. Pronotum, mesoscutum and lateral areas of propodeum reticulate, scutellum and axilla finely reticulate. POL 1.62 times OOL. Distance between antennal toruli and lower margin of clypeus 0.80 times distance between antennal toruli and medi- an ocellus. Antenna with scape 0.67 times as long as eye height and 0.87 times as long as eye length; pedicel 1.30 times as long as broad; combined length of pedicel and flagellum 2.13 times breadth of head. Fore wing 2.40 times as long as maximum width. Metasoma 1.23 times as long as mesosoma and 0.92 times as long as mesosoma and head. Otherwise similar to female. Comparative diagnosis. Janssoniella notata along with those of known eastern Palaearctic congeneric species (J. albiclava, J. magna and J. rachini) has a largest body size and the fore wing with a brownish tint. However, J. notata has the fore wing with light brownish tint and with fuscous cloud below stigma (vs brownish tint and without fuscous cloud below stigma), propodeum medially 0,38 – 0.40 times as long as scutellum (vs 0.20 – 0.30 times), metasoma with Mt 8 1.76 – 1.85 times longer than maximum width (vs 2.60 – 5.60). Distribution. Japan. Biology. Unknown.	en	Tselikh, E. V. (2020): Review of the eastern Palaearctic species of Janssoniella (Hymenoptera: Pteromalidae), with descriptions of four new species. Zoosystematica Rossica (China) 29 (2): 301-315, DOI: 10.31610/zsr/2020.29.2.301, URL: https://doi.org/10.31610/zsr/2020.29.2.301
882C87CCCB373A5E288CC57812FDF93F.taxon	description	(Figs 40 – 48) Holotype. Female, Japan, “ Ehime Pref., Odamiyama Keikoku (800 m alt.), 27. V. 1994, coll. E. Yamamoto, female ”, “ 0000094534 Sys. Ent. Hokkaido Univ. Japan ” (EIHU). Paratype. 1 female, Russia, Sakhalin Prov., Sokol Vill., 7 – 9. VII. 2011, coll. D. Rachin (ZISP); 1 female, Japan, “ Chiba Pref., Ichinomiya-Machi, 18. IV. 2004, coll. K. Kubo, female ”, “ 0000094533 Sys. Ent. Hokkaido Univ. Japan ” (EIHU), “ Janssoniella sp. Kamijo ”; 1 male, “ Japan, Kanagava Pref., Yokohama, 14. IV. 2001, coll. K. Kubo, male ”, “ 0000094536 Sys. Ent. Hokkaido Univ. Japan ”, “ Janssoniella sp. Kamijo ” (EIHU). Description. Female. Body length 6.30 – 9.20 mm; fore wing length 4.10 – 5.60 mm. Head dark metallic blue-green with diffuse violaceous lustre. Antenna with scape yellowish-brown basally and metallic green apically, pedicel metallic green, flagellum and clava dark brown or black. mesosoma dark metallic green with diffuse coppery lustre. All coxae metallic green, femora yellowish-brown, tibiae and tarsi yellow, last segment of tarsus yellowish-brown. Fore wing with brownish tint, venation brown. Metasoma with Mt 2 – Mt 6 dark metallic green with diffuse coppery lustre, Mt 7 – Mt 8 brown with diffuse coppery or violaceous lustre; ovipositor sheath black. Sculpture of head dorsally and malar space finely reticulate, clypeus weakly alutaceous and shining. Pronotum alutaceous and finely reticulate in lateral parts; mesoscutum, axilla, scutellum, frenal area and lateral areas of propodeum finely reticulate. Metasoma weakly alutaceous or smooth and shining. Head in dorsal view 1.80 – 1.90 times as broad as long and 1.05 – 1.10 times as broad as mesoscutum; in frontal view 1.17 – 1.29 times broader than high. POL 1.10 – 1.30 times OOL. Eye height 1.40 – 1.43 times eye length and 2.13 – 2.25 times as long as malar space. Distance between antennal toruli and lower margin of clypeus 0.75 – 0.86 times distance between antennal toruli and medi- an ocellus. Antenna with scape 0.65 – 0.70 times as long as eye height and as long as eye length; pedicel 1.35 – 1.60 times as long as broad and 0.33 times as long as F 1; combined length of pedicel and flagellum 1.60 – 1.70 times breadth of head; flagellum almost filiform; all anelli transverse; F 1 2.35 – 2.65 times as long as broad, with four – five rows of dense sensilla; F 2 – F 6 longer than broad. Mesosoma 1.87 – 2.00 times as long as broad. Scutellum 1.2 – 1.23 times as long as broad. Propodeum medially 0.20 – 0.27 times as long as scutellum; median carina complete and straight; nucha absent. Fore wing 2.80 – 2.85 times as long as maximum width; basal cell pilose apically; speculum closed; costal cell with three – four complete rows of setae; marginal vein 0.63 – 0.67 times as long as postmarginal vein and 1.66 – 1.78 times as long as stigmal vein. Metasoma lanceolate, 2.15 – 2.25 times as long as mesosoma and 1.70 – 1.80 times as long as mesosoma and head; Mt 8 2.60 – 3.80 times longer than maximum width; ovipositor sheath 0.4 times length of Mt 8. Male. Body length 5.00 mm; fore wing length 4.00 mm. Antenna with scape and pedicel metallic green. Fore femur metallic green, mid and hind femur brown. Metasoma with Mt 2 dark metallic green, Mt 3 – Mt 8 brown with diffuse coppery and violaceous lustre. Eye height 2.83 times as long as malar space. Pedicel 1.20 times as long as broad and 0.30 times as long as F 1; combined length of pedicel and flagellum 1.94 times breadth of head. Propodeum medially 0.35 times as long as scutellum. Fore wing 2.50 times as long as maximum width; basal cell pilose. Metasoma lanceolate, 1.20 times as long as mesosoma and 0.89 times as long as mesosoma and head. Otherwise similar to female. Comparative diagnosis. This species is similar to J. magna in having the antennal clava darker, dark brown or black, basal cell pilose apically, sculpture of frenal area and lateral areas of propodeum finely reticulate, Mt 2 and Mt 3 dark metallic green. However, J. rachini has the eye height 2.13 – 2.25 times as long as malar space (vs 3.00 – 3.10 times), antennal scape yellowish-brown basally and metallic green apically (vs entirely yellowish-brown), F 1 2.35 – 2.65 times as long as broad (vs 3.55 – 3.66 times), metasoma 2.15 – 2.25 times as long as mesosoma (vs 2.70 – 2.80 times), Mt 8 2.60 – 3.80 times longer than maximum width (vs 4.60 – 5.60 times), all coxae metallic green (vs fore and hind coxae metallic green basally and yellowish-brown apically, mid coxa yellowish-brown). Janssoniella rachini is also similar to the Europe- an J. ambigua in having the combined length of pedicel and flagellum about 1.60 times breadth of head, and a short propodeum which is medially 0.20 – 0.30 times as long as scutellum. However, J. rachini has the basal cell pilose apically (vs bare), F 1 with four – five rows of dense sensilla (vs two), and the head in dorsal view shallowly emarginate (vs distinctly emarginate). Janssoniella ambigua has the basal cell bare, F 1 with two rows of dense sensilla, head in dorsal view distinctly emarginate (Graham, 1969). Etymology. Named in honour of the collector of numerous hymenopterous insects, including a paratype of this species, Daniil V. Rachin. Distribution. Russian Far East, Japan. Biology. Unknown. Remarks. The specimen from Sakhalin Prov. was previously misidentified as J. ambigua Graham, 1969 (Tselikh, 2016).	en	Tselikh, E. V. (2020): Review of the eastern Palaearctic species of Janssoniella (Hymenoptera: Pteromalidae), with descriptions of four new species. Zoosystematica Rossica (China) 29 (2): 301-315, DOI: 10.31610/zsr/2020.29.2.301, URL: https://doi.org/10.31610/zsr/2020.29.2.301
