Acroclisoides bicolor Luo & Qin, 1991

Tselikh, Ekaterina V., Mitroiu, Mircea-Dan, Lee, Jaehyeon, Dale-Skey, Natalie & Ku, Deok-Seo, 2025, Revision of Acroclisoides Girault & Dodd, 1915 (Chalcidoidea, Pteromalidae, Metasteninae), ZooKeys 1257, pp. 153-214 : 153-214

Acroclisoides bicolor Luo & Qin, 1991

Figs 9–16

Acroclisoides bicolor Luo & Qin, 1991: 364, 365. Holotype female ( IZAS, not examined, not found in collection).

Material examined.

Russia • 1 female, “ Primorskii Reg., Spassk , 23. VIII. 1987, coll. S. Belokobylskij ” ( ZISP) . China • 1 female, 1 male, “ Jiangxi 1978. VII. 13 ”, “ Liao, Dingxi ” ( IZAS) • 2 males, “ vii 1973 HUNAN Changsha ”, “ Erthesina fullo D. X. Liao ” ( IZAS) .

Description.

Female. Body length 1.85–2.30 mm; fore wing length 1.70–2.20 mm.

Coloration. Head and mesosoma dark green blue with diffuse coppery luster; antenna with scape, pedicel and anelli yellowish brown; F 1 – F 5 and clava brown, F 6 yellow. Fore and hind coxa dark green with diffuse coppery luster, mid coxae yellow, all femora and tibiae yellowish brown, all tarsi yellow. Fore wing hyaline, venation brown. Metasoma dorsally dark green with diffuse coppery and violet luster; ovipositor sheaths yellowish brown or brown.

Sculpture. Head and mesosoma reticulate; clypeus striate; scutellum and propodeum reticulate, nucha alutaceous; petiole smooth; metasoma smooth and shiny.

Head. In dorsal view 2.30–2.50 × as broad as long and 1.40–1.43 × as broad as mesoscutum; in frontal view 1.63–1.70 × as broad as high. POL 0.61–0.70 × as long as OOL. Eye height 1.13–1.20 × eye length and 1.35–1.42 × malar space. Distance between antennal toruli and lower margin of clypeus 2.65–2.74 × distance between antennal toruli and median ocellus. Antenna with scape 0.94–1.05 × as long as eye height and 1.06–1.15 × as long as eye length; pedicel 1.32–1.38 × as long as broad; combined length of pedicel and flagellum 0.75–0.78 × breadth of head; F 1 – F 6 longer than broad, F 1 1.85–1.90 × as long as broad and with two rows of sensilla; clava 2.40–2.70 × as long as broad, with small microsetose area on C 3 and C 4. Lower posterior corner of gena rounded. Lower margin of clypeus not deeply concave bilaterally, in middle part weakly emarginate.

Mesosoma. 1.20–1.22 × as long as broad. Scutellum moderately arched, 0.73–0.86 × as long as broad, frenal area differentiated by a change in sculpture. Propodeum 0.65–0.70 × as long as scutellum, without costula but with median carina, nucha small. Fore wing 2.00 × as long as its maximum width; basal cell setose; basal vein setose; speculum small and closed below; M 0.75–0.76 × as long as PM and 1.00–1.13 × as long as S, stigma small.

Metasoma. 1.60–1.95 × as long as broad, 1.04–1.09 × as long as mesosoma, 0.80–0.83 × as long as mesosoma and head. Petiole 1.00–1.11 × as long as broad. Ovipositor sheaths projecting slightly beyond apex of metasoma.

Male. Body length 1.53–1.70 mm; fore wing length 1.40–1.65 mm. Combined length of pedicel and flagellum 0.88–0.95 × breadth of head. F 1 - F 5 yellowish brown. Otherwise, similar to female.

Biology.

Unknown.

Distribution.

Russian Far East, China ( Luo and Qin 1991; Tselikh 2016).

Comments.

Acroclisoides bicolor Luo & Qin belongs to a group of species where both sexes have a hyaline fore wing. This species is very similar to A. marimbae Tselikh & Mitroiu , sp. nov.; the differences between these species are given in the key. It is also similar to A. sinicus (Huang & Liao) and A. solus Grissel & Smith , from which it differs in having the fore wing hyaline (although some female specimens of A. solus may also have hyaline wings, see the comments under A. solus ) and the posterior corner of gena rounded.

Material from China was misidentified as A. indicus Ferrière. Here this material is regarded as A. bicolor Luo & Qin, 1991 .

Figures

Figures 9–16. Acroclisoides bicolor Luo & Qin, 1991, female, not type. 9. Habitus, lateral view; 10. Mesosoma and propodeum, dorsal view; 11. Antenna; 12. Head and pronotum, dorsal view; 13. Fore wing; 14. Head, frontal view; 15. Habitus, dorsal view; 16. Metasoma, dorsal view.