Acroclisoides indicus Ferrière, 1931

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 indicus Ferrière, 1931

Figs 41–48

Acroclisoides indicus Ferrière, 1931: 279. Holotype female ( NHMUK, not examined).

Type material examined.

Paratypes • 1 female, India, “ Dehra Dun , U. P. S. N. Chatterjee 19. XI. 1927 ”, “ 767 ”, “ Ex Pentatomidae eggs. ”, “ On Teak leaf. ”, “ Pres. By Imp. Inst. Ent. B. M. 1931-367 ”, “ Acroclisoides indicus sp. n. Ch. Ferrière det. ♂ ”, “ ♀ ”, “ Paratype ”, “ NHMUK 013455990 ” ( NHMUK) • 1 female, India, “ Dehra Dun , U. P. S. N. Chatterjee 19. XI. 1927 ”, “ 770 ”, “ Ex Pentatomidae eggs. ”, “ On Teak leaf. ”, “ Pres. By Imp. Inst. Ent. B. M. 1931-367 ”, “ Acroclisoides indicus sp. n. Ch. Ferrière det. ♂ ”, “ ♀ det. Tselikh, 2014 ”, “ Paratype ”, “ NHMUK (E) 953698 ”, “ NHMUK 013455990 ” ( NHMUK) • 2 females, “ INDIA: Madras XII. 1974 no. 4 Anantakrishnan ” “ NHMUK 013455886 ” ( NHMUK) .

Additional material examined.

Myanmar • 1 female, “ Gwethe Res. N. Toungoo. M. H. Desai coll. 20. XII. 1934 ”, “ Acroclisoides indicus Ferr. Ch. Ferrière det. ”, “ 216 ”, “ Pres. By Imp. Inst. Ent. B. M. 1937-132 ”, “ R. R. S. NO. 1423 ”, “ NHMUK 013455993 ” ( NHMUK) .

Description.

Female. Body length 2.06–2.80 mm; fore wing length 1.90–2.30 mm.

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

Sculpture. Head and mesosoma reticulate; clypeus reticulate-striate; scutellum strongly reticulate, but frenal area finely reticulate; propodeum reticulate, nucha alutaceous; petiole smooth; metasoma smooth and shiny.

Head. In dorsal view 2.17–2.40 × as broad as long and 1.40–1.60 × as broad as mesoscutum; in frontal view 1.61–1.72 × as broad as high. POL 0.47–0.59 × as long as OOL. Eye height 1.11–1.15 × eye length and 1.54–1.76 × malar space. Distance between antennal toruli and lower margin of clypeus 3.14–3.35 × distance between antennal toruli and median ocellus. Antenna with scape 0.95–1.07 × as long as eye height and 1.05–1.18 × as long as eye length; pedicel 1.00–1.10 × as long as broad; combined length of pedicel and flagellum 0.88–1.00 × breadth of head; F 1 – F 6 longer than broad, F 1 2.00–2.20 × as long as broad and with two or three rows of sensilla; clava 2.80–3.14 × as long as broad, with small microsetose area on C 3 and C 4. Lower posterior corner of gena with large spine. Lower margin of clypeus concave bilaterally, in middle part distinctly emarginate.

Mesosoma. 1.13–1.23 × as long as broad. Scutellum moderately arched, 0.83–0.92 × as long as broad, frenal area differentiated by a change in sculpture. Propodeum 0.63–0.74 × as long as scutellum, without costula but with median carina, nucha not small. Fore wing 2.08–2.23 × as long as its maximum width; basal cell with 1–3 setae, basal vein setose; speculum closed below; M 0.68–0.86 × as long as PM and 1.05–1.09 × as long as S, stigma large.

Metasoma. 1.47–1.78 × as long as broad, 1.04–1.26 × as long as mesosoma, 0.65–0.74 × as long as mesosoma and head. Petiole as long as broad. Ovipositor sheaths projecting slightly beyond apex of metasoma.

Male. Unknown. Previously discovered males have been re-identified as females.

Biology.

Egg parasitoids of hemipterans Erthesina sp. and Placosternum dama (Fabricius, 1794) ( Pentatomidae ) ( UCD Community 2025).

Distribution.

India, Myanmar, Sri Lanka ( UCD Community 2025).

Comments.

Acroclisoides indicus Ferrière belongs to a group of species that have a hyaline fore wing. This species is similar to A. sativus Kumar & Khan and A. luzonensis Gahan ; the differences between these species are given in the key.

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

Figures

Figures 41–48. Acroclisoides indicus Ferrière, 1931. 47, 48. Female, paratype and 41–46. Female, not type. 41. Habitus, lateral view; 42. Mesosoma and propodeum, dorsal view; 43. Antenna; 44. Head, frontal view; 45. Fore wing; 46. Head, lateral view. 47. Habitus, dorsal view; 48. Head and pronotum, dorsal view.