Apsilocera triapitzini Tselikh, Haas & Ku sp. nov.

Figs 81–88, 98

Type material.

Holotype • female, Republic of Korea: “ Gyeongsangnam-do, Goseong-gun, Hail-myeon, Suyang-ri, 34°58'34.8"N, 128°12'08.3"E, 18.VI.2022, coll. E. Tselikh ” (NIBR) . Paratypes • 1 male, same labels as holotype (SMNE) • 1 female, “ Gyeongsangnam-do, Geochang-gun, Mari-myeon, Yeongseung-ri, 35.714060N, 127.876007E, 06.VII.2023, coll. E. Tselikh ” (ZISP) • 1 female, “ Russia, Primirskii Reg., Lazovsky Reserve, Preobrazhenie Vill., 18–19.VIII.2010, coll. E. Tselikh ” (ZISP) • 1 female (SMNS_Hym_T 00798), “ Sweden, Mörbylånga, Kalkstad (# 114 / 2014), mixed deciduous forest, 27.VI–30.VII.2014, Malaise trap, 56.609569N, 16.503726E, coll. M. Jaschhof, C. Jaschhof ”, Sample ID: 48265 (SMNS) • 1 female (NHRS-HEVA 000022838), “ Sweden Öl, Mörbylånga kommun, Västerstads almlunds naturreservat., Old elm forest (3002 Trap ID, 3053 Event ID), 10.VI-9.VII.2014, Malaise trap, 56.427648N, 16.421110E, leg. Swedish Malaise Trap Project ”, Sample ID: SMNS_50682 (NRM) .

Description.

Female. Body length 1.20–1.61 mm; fore wing length 1.05–1.36 mm.

Coloration. Head black; antenna with scape yellowish brown; pedicel, anelli, F 1 – F 6, and clava brown. Mesosoma black, but propodeum dorsally dark blue with metallic diffuse luster. Fore coxae metallic blue, mid coxae yellowish brown, hind coxae basally metallic blue, apically yellowish brown; all femora and tibiae yellowish brown, all tarsi yellow. Fore wing hyaline, venation yellowish brown. Metasoma dorsally brown with metallic green diffuse coppery luster, laterally and ventrally yellowish brown; ovipositor sheaths brown.

Sculpture. Head grossly reticulate; clypeus radially striate, but near clypeal margin smooth. Mesosoma grossly reticulate; propodeum alutaceous. Metasoma weakly alutaceous and shiny.

Head. Head in dorsal view 2.15–2.32 × as broad as long and 1.24–1.34 × as broad as mesoscutum; in frontal view 1.37–1.52 × as broad as high. POL 1.22–1.50 × as long as OOL. Eye height 1.24–1.33 × eye length and 1.94–2.05 × as long as malar space. Distance between antennal toruli and lower margin of clypeus 1.87–2.21 × distance between antennal toruli and median ocellus. Antenna with scape 0.90–0.97 × as long as eye height and 1.12–1.28 × as long as eye length; pedicel 1.33–1.45 × as long as broad; combined length of pedicel and flagellum 0.99–1.15 × breadth of head; F 1 – F 4 longer than broad, F 5, F 6 subsquare, with single row of sensilla; clava 2.70–3.23 × as long as broad, with small micropilose area on each C 3 and C 4. Clypeal margin produced and emarginate medially. Mandible formula 3: 4.

Mesosoma. Mesosoma 1.30–1.42 × as long as broad. Scutellum arched, 0.77 × as long as broad, frenal area indistinct. Propodeum 0.39–0.50 × as long as scutellum. Fore wing 2.02–2.09 × as long as its maximum width; basal cell bare; basal vein pilose; speculum partly closed below; M 0.93–1.13 × as long as PM and 2.20–2.38 × as long as S, stigma small.

Metasoma. Metasoma 1.53–1.77 × as long as broad and 1.22–1.35 × as long as mesosoma. Petiole strongly transverse. Ovipositor sheath projecting slightly beyond apex of metasoma.

Male. Body length 0.95 mm; fore wing length 0.90 mm. Eye height 2.46 × as long as malar space. Distance between antennal toruli and lower margin of clypeus 3.16 × distance between antennal toruli and median ocellus. Antenna with pedicel 1.60 × as long as broad; clava 5.60 × as long as broad; combined length of pedicel and flagellum 1.29 × breadth of head. Metasoma 2.30 × as long as broad and 0.97 × as long as mesosoma. Otherwise, similar to female.

Etymology.

The species is named in honor of the prominent entomologist, an expert on Encyrtidae ( Hymenoptera), Dr., Prof. Vladimir A. Trjapitzin.

Distribution.

Russia, Republic of Korea, Sweden.

Comments.

Apsilocera triapitzini sp. nov. belongs to a group of species that have a vertex with regular sculpture. This species is very similar to A. bramleyi; the differences between these species are given in the key.