Gonatocerus (Lymaenon) krasavchik Triapitsyn

Triapitsyn, Serguei V., 2013, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Palaearctic region, with notes on extralimital distributions, Zootaxa 3644 (1), pp. 1-178 : 76-77

Gonatocerus (Lymaenon) krasavchik Triapitsyn , sp. n.

( Figs 120–124 )

Type material. Holotype female [ ZIN] on slide: RUSSIA. PRIMORSKIY KRAY, Ussuriyskiy rayon, Gornotayozhnoye , 21–26.viii.2000, M.V. Michailovskaya, MT. Paratypes, same locality and collector: 24.vii– 1.viii.1999 [1 Ƥ on slide, UCRC]; 5–11.viii.1999 [3 Ƥ on points, CNCI, IBPV, UCRC]; 12–17.viii.1999 [1 Ƥ on slide, UCRC]; viii.1999 [1 Ƥ on point, UCRC]; 28.viii–5.ix.1999 [1 Ƥ on point, UCRC]; 6–14.ix.1999 [1 Ƥ on point, UCRC].

Description. FEMALE. Body length 1200–1400 µm (dry-mounted paratypes). Head mostly yellowish except vertex variably brownish and brown around ocelli, trabeculae dark brown; scape mostly light brown with some brown, pedicel brown, flagellum dark brown; mesosoma usually mostly orange-light brown with some brown on scutellum and sometimes also on midlobe of mesoscutum; gaster mostly yellow with a light brown band on middle terga; legs mostly light brown.

Antenna ( Fig. 120 ) with radicle 0.36–0.4× total length of scape, rest of scape 3.3–3.7× as long as wide, with faint sculpture; pedicel usually a little longer than F1; F1–F3 a little shorter than following funicle segments, F5 the longest and F8 the broadest among funicle segments, F8 with an incision at apex; mps on F4 (usually 1, occasionally 2), F5 (2), F6 (2 to 4), F7 (3), and F8 (5); clava with at least 12 mps (possibly sometimes with as many as 15 mps), 3.0–3.7× as long as wide, slightly longer than combined length of F6–F8.

Mesosoma ( Fig. 121 ). Propodeum ( Fig. 122 ) with submedian lines wide apart. Fore wing ( Fig. 123 ) 2.9– 3.2× as long as wide; longest marginal seta 0.2–0.25× maximum wing width; disc with a faint brownish tinge (almost hyaline), bare behind submarginal vein and densely setose elsewhere. Hind wing ( Fig. 124 ) 20–23× as long as wide; disc sparsely setose and almost hyaline; longest marginal seta 2.5–2.8× maximum wing width.

Metasoma ( Fig. 121 ). Gaster longer than mesosoma. Petiole 1.2–1.5× as wide as long. Ovipositor occupying 0.6–0.7× length of gaster, not exserted beyond its apex; ovipositor length: mesotibia length ratio normally 1.1–1.2:1 except 1.6: 1 in one paratype with a slightly darker-colored mesosoma.

Measurements (µm) of the holotype. Mesosoma 646; petiole 40; gaster 775; ovipositor 500. Antenna: radicle 136; rest of scape 202; pedicel 70; F1 58; F2 67; F3 72; F4 81; F5 91; F6 85; F7 82; F8 79; clava 282. Fore wing 1433:449; longest marginal seta 109. Hind wing 1113:48; longest marginal seta 136.

MALE. Unknown.

Diagnosis. Gonatocerus krasavchik is most similar to G. ucri from which it differs by a notably lighter body color ( Fig. 121 ) and also in bearing at least 1 mps on F4 (F4 without mps in G. ucri ). Also, G. krasavchik differs from the Oriental species G. narayani in having F2 and F3 of the female antenna notably longer than wide ( Fig. 120 ) and in bearing at least 1 mps on F4 whereas in G. narayani F2 and F3 of the female antenna are quadrate to broader than long and F4 lacks mps ( Zeya & Hayat 1995).

Etymology. The species name (a noun in apposition) means “a handsome” in Russian.

Hosts. Unknown.

Figures

FIGURES 120 – 122. Gonatocerus (Lymaenon) krasavchik Ƥ (120, 121 — paratype; 122 — holotype): 120, antenna; 121, mesosoma and metasoma; 122, dorsellum and propodeum.

FIGURES 123, 124. Gonatocerus (Lymaenon) krasavchik Ƥ (holotype): 123, fore wing; 124, hind wing.