Apsilocera eleganta Tselikh, Haas & Ku 2024, sp. nov.

Apsilocera eleganta Tselikh, Haas & Ku sp. nov. Figs 32–39 Type material. Holotype • female, Republic of Korea: “ Gyeonggi-do, Pocheon-si, Soheul-eup, Jikdong-ri, Malaise trap, 30.X.2009, coll. S. Y. Park ” (NIBR). Paratypes • 1 female (NHRS-HEVA 000022836), “ 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_50686 (NRM) • 1 female (SMNS_Hym_T 00802), “ Sweden Sm, Nybro kommun, Alsterbro / Alsterån, Mixed forest (1008 Trap ID, 2000 Event ID), 5.IX–13.X.2006, Malaise trap, 56.936536N, 15.920167E, leg. Swedish Malaise Trap Project ”, Sample ID: SMNS_115563 (SMNS); • 1 female (NHRS-HEVA 000022837), “ Sweden Sm, Nybro kommun, Alsterbro / Alsterån, Mixed forest (1008 Trap ID, 1746 Event ID), 8.VIII–19.VIII.2006, Malaise trap, 56.936536N, 15.920167E, leg. Swedish Malaise Trap Project ” (NRM). Description. Female. Body length 1.60–2.82 mm; fore wing length 1.65–2.11 mm. Coloration. Head black; antenna yellowish brown. Mesosoma black, but propodeum dorsally dark blue with metallic diffuse luster; all coxae basally metallic blue, apically yellowish brown; all femora, tibiae and tarsi yellowish brown. Fore wing hyaline, venation yellowish brown. Metasoma dorsally brown, laterally and ventrally yellowish brown; ovipositor sheaths yellowish brown. Sculpture. Head reticulate; clypeus radially striate, but near clypeal margin smooth. Mesosoma reticulate; propodeum alutaceous. Metasoma weakly alutaceous and shiny. Head. Head in dorsal view 2.43–2.65 × as broad as long and 1.27–1.32 × as broad as mesoscutum; in frontal view 1.49–1.58 × as broad as high. Vertex with regular sculpture. POL 1.14–1.19 × as long as OOL. Eye height 1.37–1.40 × eye length and 1.76–2.00 × as long as malar space. Distance between antennal toruli and lower margin of clypeus 2.50–2.61 × distance between antennal toruli and median ocellus. Antenna with scape 0.92–0.95 × as long as eye height and 1.28–1.31 × as long as eye length; pedicel 1.50–1.66 × as long as broad; combined length of pedicel and flagellum 0.94–0.98 × breadth of head; F 1, F 2 longer than broad, F 3 – F 6 subquadrate, with single row of sensilla; clava 2.85–3.18 × as long as broad, with small micropilose area on each C 3 and C 4. Clypeal margin produced and emarginate medially. Mandible formula 4: 4. Mesosoma. Mesosoma 1.23–1.34 × as long as broad. Scutellum moderately depressed, 0.78 × as long as broad, frenal area indistinct. Propodeum 0.37–0.43 × as long as scutellum. Fore wing 1.94–2.01 × as long as its maximum width; basal cell with several hairs; basal vein pilose; speculum partly closed below; M 0.72–0.89 × as long as PM and 1.73–2.06 × as long as S; stigma small. Metasoma. Metasoma 1.19–1.50 × as long as broad and 1.05–1.20 × as long as mesosoma. Male. Unknown. Etymology. From the Latin elegans, referring to the elegant habitus of this species. Distribution. Korean Peninsula, Sweden. Comments. Apsilocera eleganta sp. nov. belongs to a group of species that have a vertex with regular sculpture. This species is very similar to A. bramleyi and A. triapitzini sp. nov.; the differences between these species are given in the key.