Acroclisoides miklukhai Tselikh, 2025

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 miklukhai Tselikh sp. nov.

Figs 97–104

Type material.

Holotype • female, Papua New Guinea, “ NEW GUINEA East New Britain 30. XII. 1969 ”, “ Ex. Eggs of Axiagastus sp. C . I. E. A 3688 ”, “ Acroclisoides megacephalus Gir. B. R. Subba Rao det. 70 ”, “ NHMUK 013455919 ” ( NHMUK) . Paratype • 1 female, Papua New Guinea, same data as holotype ( ZISP) .

Description.

Female. Body length 1.70–1.80 mm; fore wing length 1.50–1.60 mm.

Coloration. Head, pronotum, mesoscutum and propodeum dorsally dark blue with diffuse metallic coppery luster; head frontally, axilla and scutellum dorsally green blue with diffuse metallic coppery luster; antenna with scape, pedicel and anelli yellowish brown, F 1 – F 6 and clava brown. Fore and hind coxa dark blue green with diffuse metallic coppery luster, mid coxae yellowish brown, all femora yellowish brown, all tibiae and tarsi yellow. Fore wing with one spot near S, venation brown. Metasoma dorsally dark brown with metallic violet and blue luster; ovipositor sheaths brown.

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

Head. Head in dorsal view 2.07–2.20 × as broad as long and 1.32–1.41 × as broad as mesoscutum; in frontal view 1.59–1.63 × as broad as high. POL 0.62–0.68 × as long as OOL. Eye height 1.09–1.13 × eye length and 1.89–2.00 × malar space. Distance between antennal toruli and lower margin of clypeus 1.77–1.78 × distance between antennal toruli and median ocellus. Antenna with scape 0.88–0.89 × as long as eye height and 0.96–1.00 × as long as eye length; pedicel 1.00–1.20 × as long as broad; combined length of pedicel and flagellum 0.93–0.99 × breadth of head; F 1 – F 6 longer than broad, F 1 2.50–2.80 × as long as broad and with 2–3 rows of sensilla; clava 3.00–3.18 × as long as broad, with small microsetose area on C 3 and C 4. Lower posterior corner of gena forming an acute angle. Lower margin of clypeus concave bilaterally, in middle part distinctly emarginate.

Mesosoma. Mesosoma 1.13–1.21 × as long as broad. Scutellum moderately arched, 0.76–0.87 × as long as broad, frenal area differentiated by a change in sculpture. Propodeum 0.72–0.75 × as long as scutellum, without costula but with median carina, nucha not small. Fore wing 2.00–2.20 × as long as its maximum width; basal cell partly setose, basal vein setose; speculum closed below; M 0.82–0.84 × as long as PM and 1.24–1.31 × as long as S, stigma large.

Metasoma. Metasoma 1.54–2.00 × as long as broad, 0.76–1.05 × as long as mesosoma, 0.58–0.78 × as long as mesosoma and head. Petiole 0.86–1.11 × as long as broad. Ovipositor sheaths projecting slightly beyond apex of metasoma.

Male. Unknown.

Etymology.

The species is named in honor of Nicholai Nikolaevich Mikloukho-Maclay, a Russian explorer famous as one of the earliest scientists to settle among and study indigenous people of New Guinea. (noun in genitive case).

Biology.

Egg parasitoids of the hemipteran Axiagastus sp. ( Pentatomidae ).

Distribution.

Papua New Guinea.

Comments.

Acroclisoides miklukhai Tselikh , sp. nov. belongs to a group of species where females have a fore wing with one spot near S. This species is similar to A. supramaculatus Tselikh , sp. nov.; the differences between these species are given in the key.

Figures

Figures 97–104. Acroclisoides miklukhai Tselikh, sp. nov., female, holotype. 97. Habitus, lateral view; 98. Mesosoma and propodeum, dorsal view; 99. Antenna; 100. Head, frontal view; 101. Fore wing; 102. Head, lateral view; 103. Habitus, dorsal view; 104. Head and pronotum, dorsal view.