Gonatocerus (Cosmocomoidea) rogersi Matthews, 1986

Triapitsyn, Serguei V., 2013, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Palaearctic region, with notes on extralimital distributions, Zootaxa 3644 (1), pp. 1-178 : 161-162

Gonatocerus (Cosmocomoidea) rogersi Matthews, 1986

( Figs 304–308 )

Gonatocerus rogersi Matthews 1986: 22 (member of the ater species group ).

Type locality: Awbridge, Hampshire Co., England, UK.

Gonatocerus rogersi Matthews : Pricop 2010b: 113 (mentioned as valid species).

Type material examined. Holotype female [ BMNH] on slide ( Fig. 304 ) labeled: 1. “Holotype Ƥ Gonatocerus rogersi sp. n. det. Matthews 1984 Holotype [in red circle]”; 2. “ ENGLAND: HANTS Awbridge v.1981 C. Vardy 29 NOV 1983 M1034/”. The holotype is in good condition, nicely dissected under 5 coverslips.

Distribution. PALAEARCTIC: UK ( England).

Redescription. FEMALE. Body color is difficult to assess because the specimen had been well cleared before being slide-mounted ( Matthews 1986), most likely head and mesosoma brown or dark brown and gaster brown.

Antenna ( Fig. 305 ) with radicle 0.25× total length of scape, rest of scape 3.5× as long as wide; pedicel longer than F1; F1 the shortest funicle segment, F3 a little longer than F2 and about as long as F4, F5 the longest funicle segment, F6 and F7 subequal and slightly longer than F8; mps on F4 (0 or 1), F5 (2), F6 (1), F7 (1 or 2), and F8 (2); clava with 8 mps, about 3.8× as long as wide, slightly longer than combined length of F6–F8.

Mesosoma ( Fig. 306 ) shorter than metasoma. Propodeum with fine, parallel submedian carinae extending almost to anterior margin of propodeum and slightly curving towards each other there but not connecting. Fore wing ( Fig. 307 ) about 4.1× as long as wide; longest marginal seta 0.34–0.35× maximum wing width; disc notably infumate, bare behind submarginal and marginal veins except for 3 setae behind marginal vein and densely setose elsewhere. Hind wing ( Fig. 307 ) about 25× as long as wide; disc slightly infumate; longest marginal seta 3.1× maximum wing width.

Metasoma ( Fig. 308 ). Ovipositor occupying about 0.6× length of gaster, not exserted beyond its apex, about 1.0× as long as mesotibia.

Measurements (µm). Mesosoma 351; petiole: 21; gaster 503; ovipositor 303. Antenna: radicle 39; rest of scape 116; pedicel 55; F1 30; F2 45; F3 52; F4 52 (55); F5 61; F6 55; F7 55; F8 51; clava 176. Fore wing 922:226; longest marginal seta 78. Hind wing 713:29; longest marginal seta 90.

MALE. Unknown.

Diagnosis. Gonatocerus rogersi , known from the female holotype only, is characterized by a narrow fore wing (about 4.1× as long as wide) with a notably infuscate disc ( Fig. 307 ).

Hosts. Unknown.

Figures

FIGURES 304 – 306. Gonatocerus (Cosmocomoidea) rogersi Ƥ (holotype): 304, slide; 305, antenna; 306, mesosoma.

FIGURES 307, 308. Gonatocerus (Cosmocomoidea) rogersi Ƥ (holotype): 307, wings; 308, metasoma.