Euops oops, Riedel, 2006

Riedel, Alexander, 2006, Revision of the subgenus Metaeuops Legalov of Euops Schoenherr (Coleoptera, Curculionoidea, Attelabidae) from the Papuan region, Zootaxa 1181 (1), pp. 1-102 : 24-26

Euops oops sp. n.

( Figs 6 , 30 , 57 , 102 , 123 , 141 , 155 , 172 , 221 )

Diagnosis

Coloration largely bright metallic blue. Male: Aedeagus with area of long, thin, centripetally directed setae between endophallic sclerites. TA ( Fig. 102 ) with main part of frame lyriform, but with subapical lateral extensions wider before apex than at base. Female: Disk at middle with distinct, transverse impression.

Range ( Fig. 221 ) Jayapura Prov. (Cyclops Mts., Lereh). Elevation: 500– 850 m.

Material examined

Holotype. WEST NEW GUINEA, Jayapura Prov. , Sentani, Cyclops Mts., 270–500 m, 26.IX.1996, leg. A.Riedel ( MZB) . Paratypes. WEST NEW GUINEA, Jayapura Prov .: 3 males, 1 female (marked as “ allotype ”), same data as holotype ( ARC, MZB) ; 2 males, Sentani , Cyclops Mts., 400–700 m, 16.X.1996, leg. A.Riedel ( ARC) ; 1 male, Sentani , Cyclops Mts., 850–950 m, 16.X.1996, leg. A.Riedel ( ARC) ; 3 males, Sentani , Cyclops Mts., 700–1300 m, 23.X.2004, leg. A.Riedel ( ARC) ; 1 male, Lereh , 500–1000 m, 26.I.1996, leg. A.Riedel ( ARC) .

Description

Holotype, male. Length, pronotum + elytron: 3.19 mm. Coloration ( Fig. 6 ) largely bright metallic blue, including scutellum; legs and rostrum ferruginous with blue lustre; ventral surface darker than dorsal surface; antenna black. Head. As in Fig. 30 . Gena 0.90 X as long as width of head immediately behind eyes. Contours of genae in dorsal view markedly converging anteriad. Vertex transversely rugulose; laterally behind eye sparsely punctate with minute punctures. Eyes in dorsal view moderately prominent, set off from lateral contour of head. Profile of vertex with marked constriction immediately behind eye. Ventral surface of head in front of gular region markedly sculptured; with shallow median furrow, transversely to obliquely rugose, punctures interspersed between wrinkles. Rostrum 1.98 X as long as mouthparts; at widest point 1.49 X wider than at base; in profile dorsal contour above antennal insertion with weak rounded prominence, anteriorly in sinuate line to apex; ventral contour subangulate with head (ca. 135°), in sinuate line to apex; ventrally on submentum with numerous long, stiff, suberect setae. Mouthparts. Prementum at base 1.8 X wider than long, ca. 2.6 X wider than at apex; with weakly bisinuate lateral margins converging apicad; apical processes subangulate, subequal in length, median process slightly longer, protruding slightly more ventrad than lateral processes. Antenna slender, as in Fig. 57 . Prothorax 0.94 X as long as wide; preapical constriction very shallow, almost absent; disc evenly convex, shining, at middle densely punctate with small punctures; sides with dense, deep punctures. Metanotum with pair of distinct lateral lobes. Elytron 2.23 X longer than wide; striae moderately impressed. Thoracic venter. Height of pterothorax 0.82 X length of elytron. Procoxa in anterior aspect 1.18 X as long as wide. Legs. Profemur subsymmetrically clavate, moderately swollen, thickest at 0.35 of length from apex, at base with indistinct stalk. Protibia evenly weakly curved ventrad; ventral contour slightly sinuate, subparallel to dorsal contour. Mesotibia dorsally before apex with subangulate lobe, its apical edge leading obliquely towards uncus; overall shape of tibia subtriangular. Mesotarsus straight, 2.7 X as long as wide. Metatibia of similar size as mesotibia. Abdomen. Ventral contour anteriorly straight in lateral view, evenly rounded to constriction between sternite VI and VII. Ventral surface of sternites IV–V each with double patch of erect setae, at middle with subglabrous longitudinal band; sternite III and sternite VI with sparse subrecumbent setae; sternite VI without median knob or swelling in front of posterior margin. Pygidium 0.94 X wider than long; at extreme base microreticulate, remainder shining; moderately densely, moderately deeply punctate. Genitalia. Apex of tergite VIII curved in evenly convex line. Sternite VIII as in Fig. 172 . Tegminal plate ( Fig. 123 ) with sides weakly converging apicad; apical edge subtruncate, densely setose with moderately long setae. Aedeagus. Apical scoop of pedon ( Fig. 155 ) ca. 1.17 X as long as wide, evenly rounded to apex, spoon­shaped. Tectum as in Fig. 141 ; lateral frame converging with straight sides to narrow, rounded apex; subapically without extensions. TA as in Fig. 102 ; with main part of frame lyriform, but with subapical lateral extensions wider before apex than at base; transfer processes basally articulated inside of frame of TA, apically projecting beyond frame´s apex; base of transfer processes within basal half of frame; without distinct dorsal plate; internal support structures of ductus ejaculatorius long, but hardly reaching level of basal sclerites; basal sclerites ca. 0.27 X of total length of TA. Cuticle of endophallus in apical 0.51 (of total length of aedeagus) with dense, subtriangular denticles; in mid portion with pair of elongate sclerites; between these sclerites with area of long, thin, centripetally directed setae (similar as in Figs 113–115, 117 ).

Allotype, female. Same as holotype except: length, pronotum + elytron: 2.80 mm. Head. Gena 0.89 X as long as width of head immediately behind eyes. Profile of vertex without constriction behind eye. Rostrum 1.64 X as long as mouthparts; at widest point 1.43 X wider than at base. Prothorax 0.90 X as long as wide. Disk at middle with distinct, transverse impression. Elytron 2.27 X longer than wide. Thoracic venter. Height of pterothorax 0.85 X length of elytron. Procoxa in anterior aspect 1.05 X as long as wide. Legs. Dorsal contour of profemur sinuate, in basal third straight, continuing in markedly convex line to apex. Protibia weakly curved; ventral contour sinuate, basal half convex, apical half concave; ventral surface at middle denticulate, subapically smooth, with suberect setae; tibial apex with uncus and minute premucro; premucro in ventral position. Abdomen. Setose patch of venter 1.15 X as long as wide, consisting of 3 double rows of modified setae. Pygidium 1.20 X wider than long. Genitalia. Sternite VIII similar as in E. coelestinus ( Fig. 190 ). Tergite VIII apically subtruncate. Spermatheca not found.

Intraspecific variation

Male length (pronotum + elytron): 2.56–3.30 mm (n=12, =2.90 ± 0.25). Coloration of legs either ferruginous with bluish lustre, or bluish black. Head and prothorax metallic blue or with more or less distinct greenish lustre. Prothorax 0.93–0.99 X as long as wide (n=11, =0.95 ± 0.02). Elytron 2.23–2.45 X longer than wide (n=11, =2.33 ± 0.07). Thoracic venter. Height of pterothorax 0.74–0.87 X length of elytron (n=11, =0.79 ± 0.04). Abdomen. Pygidium 0.93–1.01 X wider than long (n=11, =0.97 ± 0.03). TA of unique male specimens from Lereh somewhat differing: with main part of frame less distinctly lyriform, subapically distinctly wider than at base.

Etymological note

This epithet is to be treated as a noun in apposition. It may resort to the big, o­shaped eye of the species. The English language offers yet another interpretation.

Figures

FIGURES 1–9. Habitus of Euops (Metaeuops) spp.: (1) E. coelestinus, male (Japen Isl.); (2) E. coelestinus, female lectotype; (3) E. violaceus, female lectotype; (4) E. illegalovi, holotype; (5) E. swartensis, holotype; (6) E. oops, holotype; (7) E. tenuiflagellaris, holotype; (8) E. judithae, holotype; (9) E. coeruleus, holotype. Scale lines 1 mm.

FIGURES 26–35. Head of Euops (Metaeuops) spp., in lateral aspect; males: (26) E. ratcliffei, holotype; (27) E. arfakensis, holotype; (28) E. illegalovi, holotype; (29) E. biru, holotype; (30) E. oops, holotype; (31) E. swartensis, holotype; (32) E. judithae, holotype; (33) E. dintelmanni, holotype; (34) E. coelestinus (Ransiki); (35) E. ruficornis (Wau). Scale lines 500 µm.

FIGURES 56–72. Antenna of Euops (Metaeuops) spp.: (56) E. torricelliensis, holotype; (57) E. oops, holotype; (58) E. arfakensis, holotype; (59) E. biru, holotype; (60) E. illegalovi, holotype; (61) E. tenuiflagellaris, holotype; (62) E. judithae, holotype; (63) E. swartensis, holotype; (64) E. coeruleus, holotype; (65) E. dintelmanni, holotype; (66) E. piceus, holotype; (67) E. curvipes, holotype; (68) E. ratcliffei, holotype; (69) E. coelestinus (Ransiki); (70) E. ruficornis, lectotype; (71) E. paratibialis, holotype; (72) E. violaceus, lectotype. Scale lines 200 µm.

FIGURES 102–105. Male genitalia of Euops (Metaeuops) spp.; transfer apparatus of aedeagus in dorsal aspect (left) and lateral aspect (right); (102) E. oops, holotype; (103) E. torricelliensis, holotype; (104) E. swartensis, holotype; (105) E. illegalovi, holotype. Scale lines 100 µm.

FIGURES 119–130. Male genitalia of Euops (Metaeuops) spp.; dorsal plate of tegmen in dorsal aspect; (119) E. coeruleus, holotype; (120) E. torricelliensis, holotype; (121) E. illegalovi, holotype; (122) E. ruficornis (Wau); (123) E. oops, holotype; (124) E. swartensis, holotype; (125) E. dintelmanni, holotype; (126) E. biru, holotype; (127) E. arfakensis, holotype; (128) E. curvipes, holotype; (129) E. ratcliffei, holotype; (130) E. coelestinus (Ransiki). Scale lines 100 µm.

FIGURES 136–147. Male genitalia of Euops (Metaeuops) spp.; tectum of aedeagus in dorsal aspect; (136) E. torricelliensis, holotype; (137) E. dintelmanni, holotype; (138) E. biru, holotype; (139) E. curvipes, holotype; (140) E. ratcliffei, holotype; (141) E. oops, holotype; (142) E. ruficornis (Wau); (143) E. coelestinus (Ransiki); (144) E. swartensis, holotype; (145) E. illegalovi, holotype; (146) E. coeruleus, holotype; (147) E. arfakensis, holotype. Scale lines 100 µm.

FIGURES 148–159. Male genitalia of Euops (Metaeuops) spp.; pedon of aedeagus in ventral aspect; (148) E. arfakensis, holotype; (149) E. torricelliensis, holotype; (150) E. coelestinus (Ransiki); (151) E. curvipes, holotype; (152) E. swartensis, holotype; (153) E. dintelmanni, holotype; (154) E. ratcliffei, holotype; (155) E. oops, holotype; (156) E. illegalovi, holotype; (157) E. coeruleus, holotype; (158) E. biru, holotype; (159) E. ruficornis (Wau). Scale lines 100 µm.

FIGURES 170–186. Male sternite VIII of Euops (Metaeuops) spp.; (170) E. coelestinus (Ransiki); (171) E. torricelliensis, holotype; (172) E. oops, holotype; (173) E. illegalovi, holotype; (174) E. tenuiflagellaris, holotype; (175) E. judithae, holotype; (176) E. swartensis, holotype; (177) E. ratcliffei, holotype; (178) E. arfakensis, holotype; (179) E. curvipes, holotype; (180) E. dintelmanni, holotype; (181) E. coeruleus, holotype; (182) E. ruficornis (Wau); (183) E. biru, holotype; (184) E. piceus, holotype; (185) E. tibialis, lectotype; (186) E. paratibialis, holotype. Scale lines 100 µm.

FIGURES 220–222. Distribution of Euops (Metaeuops) spp. Areas above 1000 m are shaded.

FIGURES 110–118. Male genitalia of Euops (Metaeuops) spp.; mid portion of endophallus with endophallic sclerites and field of centripetal setae if present; (110) E. ruficornis (Wau); (111) E. dintelmanni, holotype; (112) E. curvipes, holotype; (113) E. judithae, holotype; (114) E. illegalovi, holotype; (115) E. torricelliensis, holotype; (116) E. biru, holotype; (117) E. coeruleus, holotype; (118) E. ratcliffei, holotype. Scale lines 50 µm.

FIGURES 189–202. Female sternite VIII of Euops (Metaeuops) spp.; (189) E. coelestinus (Wasior); (190) E. coelestinus lectotype; (191) E. violaceus, lectotype; (192) E. swartensis, allotype; (193) E. tenuiflagellaris, allotype; (194) E. judithae, allotype; (195) E. illegalovi, allotype; (196) E. ratcliffei, allotype; (197) E. curvipes, allotype; (198) E. ruficornis, lectotype; (199) E. dintelmanni, allotype; (200) E. biru, allotype; (201) E. piceus, allotype; (202) E. tibialis (Epomani); (203) E. paratibialis, allotype. Scale lines 100 µm.