Krasava sergeyi Tselikh, sp. nov.

(Figs 1–7)

Material examined. Holotype: ♀, REPUBLIC OF KOREA, “ Gyeongsangnam-do, Gaseon-ri, Ilbanseong-myeon, Jinju–si, 16.VII–13.VIII.2022, malaise trap, coll. An Tae-Ho ” (NIBR).

Paratypes: REPUBLIC OF KOREA, 3 ♀, “ Gyeongsangnam-do, Soheul-eup, Pocheon-si, Gyeonggi-do, 24.V–12.VI.2017, 30.VI–17.VII.2017, 31.VII–16.VIII.2017, coll. Kim, Kim, Nam ”(SMNE); 1♀,“ Gyeongsangnam-do, Seok Hyeon-dong, Suncheon-si, malaise trap, 5.VI–20.VI.2017, coll. J.H. Lee ” (SMNE); 1 ♀, “ Jeju-do, Hannamri, Namwon-eup, Seogwipo-si, 16.VI–14.VII.2021, malaise trap, coll. Y.H. Park, M.H. Kim, D.H. Park, J.Y. Kim ” (SMNE); 3 ♀, “ Gyeongsangnam-do, Gaseon-ri, Ilbanseong-myeon, Jinju-si, 4.VI–16.VII.2022, malaise trap, coll. An Tae-Ho ” (SMNE); 2 ♀, “ JuWangSan-myeon, Cheongsong-gun, (Mt) JuWangSan, 12.V.2022, coll. J.H. Lee ” (SMNE); 1 ♀, “ Daegwallyeong-myeon, Pyeongchang-gun, Daegwallyeong Pass, 28.VIII.2022, coll. J.H. Lee ” (SMNE); 1 ♀, “ Gyeongsangnam-do, Sirubong Peak, Jinhae-gu, Changwon-si, 26.IX.2022, coll. J.H. Lee ” (SMNE); 1 ♀, “ Wolpyeong-ri, Hoengcheon-myeon, Hadong-gun, 23.V.2023, coll. J.H. Lee ” (ZISP); 2 ♀, “ Gyeongsangnam-do, Jeondae-ri, Hoengcheon-myeon, Hadong-gun, 22.VI.2023, coll. J.H. Lee ” (ZISP); 1 ♀, “ Gyeongsangnam-do, Namsan-ri, Hoengcheon-myeon, Hadong-gun, 22.VI.2023, coll. J.H. Lee ” (ZISP); 1 ♀, “ Gyeongsangnam-do, Aechi-ri, Hoengcheon-myeon, Hadong-gun, 22.VI.2023, coll. J.H. Lee ” (ZISP); 1 ♀, “ Gyeongsangnam-do, Geochang-gun, Science Museum of Natural Enemies, 27–VI.2023, coll. E. Tselikh ” (ZISP).

Description. Female. Body length 2.7–3.3 mm; fore wing length 2.1–2.4 mm.

Head and mesosoma black with weak blue metallic lustre; metasoma dark brown with violet and blue metallic lustre; antenna with scape yellow, pedicel and flagellum yellowish-brown. All coxae black with a faint blue metallic lustre; femora brown; tibiae and tarsi entirely yellow. Fore wing with light brownish tint, venation brown; ovipositor sheath brown.

Head in dorsal view 2.0–2.08× as broad as long and 1.26–1.29× as broad as mesoscutum; in frontal view, 1.22– 1.30× broader than high. POL 0.89–1.07× OOL. Eye height 1.28–1.36× eye length and 1.44–1.50× as long as malar space. Distance between antennal toruli and lower margin of clypeus 0.60–0.63× distance between antennal toruli and median ocellus. Clypeus radially striate, its lower margin weakly emarginate. Antenna with scape as long as eye height and 1.37–1.43× as long as eye length, not quite reaching lower margin of median ocellus; pedicel 2.6–2.7× as long as broad and 2.4–2.6× as long as F1; combined length of pedicel and flagellum 0.83–0.86× head breadth; flagellum clavate; second anellus transverse, 1.2× as long as first anellus; F1–F2 subquadrate, F3–F6 transverse, each bearing one row of dense sensilla, clava 1.83–2.00× as long as broad.

Mesosoma 1.45–1.50× as long as broad. Scutellum as long as broad. Propodeum medially 0.50–0.53× as long as scutellum; median carina absent, plicae irregular; nucha short and reticulate, propodeum with a concave median area. Fore wing 2.6–2.75× as long as its maximum width; basal cell partly pilose; speculum open; M 1.30–1.45× as long as P and 2.75–2.90× as long as S; S curved; stigma small.

Metasoma lanceolate, 2.04–2.30× as long as broad; 1.50–1.55 as long as mesosoma and 1.10–1.15 as long as mesosoma and head. Ovipositor sheath slightly projecting beyond apex of metasoma.

Etymology. This new species is named in honour of Prof. Sergey Yurievich Storozhenko, a renowned Russian orthopterologist, in celebration of his upcoming 70th birthday.

Distribution. Eastern Palaearctic (South Korea).