Neomegadicylus gracileus Tselikh, Rasplus & Ku, 2023

Tselikh, Ekaterina V., Rasplus, Jean-Yves, Lee, Jaehyeon & Ku, Deok-Seo, 2023, Neomegadicylus, a new genus of Pteromalidae (Hymenoptera, Chalcidoidea) from the Palaearctic region, Journal of Hymenoptera Research 96, pp. 569-577 : 569

Neomegadicylus gracileus Tselikh, Rasplus & Ku sp. nov.

Figs 1-8

Description.

Female. Body length 2.60-2.80 mm. Fore wing length 1.90-2.10 mm.

Head and mesosoma dark metallic green with diffuse coppery lustre; metasoma brown, partly with metallic green and coppery lustre. Antenna with scape and pedicel yellowish-brown, F1-F4 dorsally yellowish-brown, ventrally yellowish-brown or yellow, F5 dorsally yellowish-brown, ventrally yellow, F6 and clava brown. All coxae dark metallic blue-green with diffuse coppery lustre; all femora yellowish-brown; tibiae and tarsi yellow. Fore wing hyaline, venation yellowish-brown.

Head in dorsal view 2.14-2.26 times as broad as long and 1.24-1.25 times as broad as mesoscutum; in frontal view 1.17-1.18 times as broad as high. POL 1.30-1.44 times OOL. Eye height 1.40 times eye length and 1.75-1.82 times as long as malar space. Distance between antennal toruli and lower margin of clypeus 0.84-0.88 times distance between antennal toruli and median ocellus. Antenna with scape 0.90-0.95 times as long as eye height and 1.27-1.33 times as long as eye length; pedicel 2.25-2.35 times as long as broad and 0.63-0.71 times as long as F1; combined length of pedicel and flagellum 1.57-1.75 times breadth of head; F1 3.25-3.65 times as long as broad, F2-F6 longer than broad; clava 3.40-3.60 times as long as broad.

Mesosoma 1.60-1.68 times as long as broad, notauli straight. Scutellum finely reticulate, 0.90-0.95 times as long as broad. Propodeum 0.66-0.80 times as long as scutellum; costula absent, median carina not complete or absent; nucha large and reticulate. Fore wing 2.40-2.50 times as long as maximum width; basal cell bare; basal vein pilose; speculum open; M 1.07-1.19 times as long as P and 1.94-2.10 times as long as S.

Metasoma 3.30-4.30 times as long as broad, 1.04-1.15 times as long as mesosoma and head; Mt2 posteriorly emarginate. Ovipositor sheath projecting beyond apex of metasoma.

Etymology.

The name is a noun in apposition derived from the Latin word " gracilis ".

Material examined.

Holotype: South Korea • ♀; Gyeonggi-do, Pocheon-si, Soheul-eup , 37°45'29.2"N, 127°10'0.4"E, 15.X-30.X.2015, coll. Park, Choi, Nam, Shin, Kim; deposited in NIBR . Paratypes: South Korea • 2 ♀♀; Gyeongsangbuk-do, Bonghwa-gun, Myeongho-myeon, Gwanchang-ri , Mt. Cheongryangsan , 14.VII.2015, coll. E. Tselikh; ZISP • 1 ♀, Gyeongsangbuk-do, Gyeongju-si, Hyeongok-myeon, Namsa-ri , 15-29.IX.2005, coll. J.O. Lim; SMNE • 5 ♀♀; Gyeonggi-do, Pocheon-si, Soheul-eup , 37°45'29.2"N, 127°10'0.4"E, 15.V.2015, coll. Park, Choi, Nam, Shin, Kim; ZISP • 6 ♀♀; same locality, 30.IX-15.X.2015, 15.X-30.X.2015, coll. Park, Choi, Nam, Shin, Kim; SMNE • 1 ♀; same locality, 37°45'08.7"N, 127°09'07.2"E, 4.V-15.V.2018, coll. Kim, Kim, Gi, Jo; KNA • 1 ♀; Gyeongsangnam-do, Geochang-gun, Namsang-myeon, Muchan-ri , Malaise Trap, 8.IX-23.IX.2021, coll. J. Lee, H. Jeong; SMNE . Japan • 1 ♀; Honshu, Hyogo Pref, Kobe , Rokko Mts. , Maya Mt. , forest, 4.IX.2005, coll. S. Belokobylskij; (ZISP) .

Distribution.

South Korea, Japan.

Figures

Figures 1 - 8. Neomegadicylus gracileus Tselikh, Rasplus & Ku, sp. nov., holotype female (1, 2, 5, 7, 8), paratype female (3, 4, 6) 1 body, lateral view 2 head, dorso-lateral view and mesosoma, dorsal view 3 clypeus, frontal view 4 wings 5 antenna 6 metasoma, dorsal view 7 head and mesosoma, lateral view 8 propodeum, dorsal view.