Gonatocerus (Cosmocomoidea) rakitovi Triapitsyn

Triapitsyn, Serguei V., Huber, John T., Logarzo, Guillermo A., Berezovskiy, Vladimir V. & Aquino, Daniel A., 2010, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Neotropical region, with description of eleven new species, Zootaxa 2456, pp. 1-243 : 212-213

Gonatocerus (Cosmocomoidea) rakitovi Triapitsyn , sp. n.

( Figs 449–452 )

Gonatocerus sp. (ater group): Rakitov & Godoy 2005: 456 (apparent host information).

Type material. Holotype female [ UCRC ENT 014816] on slide: COSTA RICA. CARTAGO, Parque Nacional Tapantí, 9°44.22’N 83°46.82’W, 1290 m, 27.vi.2003, R.A. Rakitov (collected while antennating an intact egg mass of Quichira parallela Rakitov & Godoy on a Pennisetum purpureum leaf, grassy roadside). The holotype lacks one antenna.

Description. FEMALE (holotype). Head, mesosoma and petiole mostly orange-brown-yellow except middle and lower face brownish, trabeculae dark brown; gaster with a wide transverse dark brown band on second to fourth gastral terga, remainder of gaster yellowish-brown; radicle yellow-brown, scape light brown basally and brown apically, pedicel brown, flagellum dark brown except F6 and apical half or so of F5 yellowish-white; legs light brown except metatibia brown.

Antenna ( Fig. 449 ) with radicle 0.27x total length of scape, rest of scape 4.3x as long as wide, longitudinally striate; pedicel shorter than F1; F2 and F3 subequal in length (F2 slightly longer) and the longest funicle segments, F4–F8 each a little shorter than preceding funicle segment; F1 without mps, F2–F8 each with 2 mps; clava with 8 mps, about 4.7x as long as wide, a little longer than combined length of F6–F8.

Mesosoma ( Fig. 450 ). Mesoscutum and scutellum with conspicuous sculpture. Propodeum ( Fig. 451 ) long, about as long as scutellum, with median oval area bounded by submedian carinae extremely narrow (about 6x as long as wide) and with several rugae and wrinkles, and with numerous transverse rugae lateral to submedian carinae. Forewing ( Fig. 452 ) 3.5–3.6x as long as wide; longest marginal seta 0.18–0.19x maximum wing width; disc with a slight brownish tinge throughout except a little more pronounced, as an inconspicuous brownish spot, at posterior margin of wing just beyond apex of venation, bare behind submarginal vein, cubital row of setae incomplete, not extending to base of marginal vein, but disc with numerous setae behind middle and apex of marginal vein and also behind stigmal vein. Hind wing ( Fig. 452 ) about 21x as long as wide; disc bare behind venation, with a row of setae along each margin and numerous additional setae apically and basally along anterior margin of wing, and with a slight, uniform brownish tinge; longest marginal seta 1.8x maximum wing width.

Petiole long (2.8x as long as wide). Gaster shorter than mesosoma ( Fig. 450 ). Ovipositor 0.8x length of gaster, not exserted beyond its apex; ovipositor length: mesotibia length ratio about 0.8:1.

Measurements (µm) of the holotype. Body (taken from dry specimen) 1849; head (taken from dry specimen) 300; mesosoma 861; petiole 240; gaster 713; ovipositor 590. Antenna: radicle 121; rest of scape 321; pedicel 85; F1 97; F2 191; F3 188; F4 167; F5 145; F6 133; F7 127; F8 106; clava 409. Forewing 2190:615; longest marginal seta 114. Hind wing 1690:82; longest marginal seta 148.

MALE. Unknown.

Diagnosis. Gonatocerus (Cosmocomoidea) rakitovi sp. n. is a member of the morrilli subgroup of the ater species group. It is similar to G. (Cosmocomoidea) morrilli (Howard) and other species from the morrilli complex, such as G. annulicornis (Ogloblin) , G. barbos sp. n., G. gerasim sp. n., G. kiskis sp. n., G. quirogai (Ogloblin) , and G. walkerjonesi Triapitsyn , from which it differs by having numerous setae on the forewing disc behind the marginal and stigmal veins ( Fig. 452 ).

Etymology. This species is named after its collector, Dr. Roman A. Rakitov.

Host.? Quichira parallela Rakitov & Godoy (Cicadellidae) . Both G. rakitovi and G. (Cosmocomoidea) blefuscu sp. n. were captured while antennating the same (intact) egg mass of this sharpshooter ( Rakitov & Godoy 2005).

Figures

FIGURES 449 – 452. Gonatocerus (Cosmocomoidea) rakitovi ♀ (holotype): 449, antenna; 450, mesosoma and metasoma; 451, dorsellum and propodeum; 452, wings.