Gonatocerus (Cosmocomoidea) garchamp 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 : 150-152

Gonatocerus (Cosmocomoidea) garchamp Triapitsyn , sp. n.

( Figs 304–310 )

Gonatocerus sp. 12: Triapitsyn 2006b: 112 (tentative identification as possibly = G. nigriflagellum (Girault) [as misidentified by Ogloblin], in part); Triapitsyn 2007: 59 (as a new species, in part).

Type material. Holotype female [MLPA] on slide: ARGENTINA. MISIONES, Loreto, 9.ix–5.x.2001, S.O. Martínez, P. Fidalgo, Malaise trap in Ruinas Jesuíticas. Paratypes: ARGENTINA. BUENOS AIRES, Hurlingham, F1 from colony on eggs of Tapajosa rubromarginata (Signoret) at USDA, ARS South American Biological Control Laboratory, G.A. Logarzo; originally from: MISIONES, Oberá, x.2006, G.A. Logarzo [1 ♂ on point and 1 ♂ on slide, UCRC]. MISIONES: Loreto: 3.viii.1931, A.A. Ogloblin [1 ♀ on slide, MLPA] [under the same coverslip with a non-type female of G. (Cosmocomoidea) metanotalis (Ogloblin) ]; 7.viii.1931, A.A. Ogloblin [1 ♀, 1 ♂ on slide (under the same coverslip), MLPA]; 8.xii.1931, A.A. Ogloblin [1 ♀ on slide, MLPA]; 25.i.1932, A.A. Ogloblin [1 ♂ on slide, MLPA]; 13.iv.1932, A.A. Ogloblin [1 ♂ on slide, MLPA] (under the same coverslip with a paralectotype female of G. (Cosmocomoidea) metanotalis ); 25.iv.1932, A.A. Ogloblin [1 ♂ on slide, MLPA]; 5.v.1932, A.A. Ogloblin [1 ♀ on slide, MLPA]; 19.v.1932, A.A. Ogloblin [1 ♂ on slide, MLPA]; 27.v.1932, A.A. Ogloblin [1 ♂ on slide, MLPA]; 15.vi.1932, A.A. Ogloblin [1 ♀ on slide, MLPA]; 29.vi.1932, A.A. Ogloblin [1 ♂ on slide, MLPA]; 7.vii.1932, A.A. Ogloblin [1 ♂ on slide, MLPA]; 17.iii.1933, A.A. Ogloblin [1 ♀ on slide, MLPA]; 17.iv.1933, A.A. Ogloblin [1 ♀, 1 ♂ on separate slides, MLPA]; 19.iv.1933, A.A. Ogloblin [1 ♀ on slide, MLPA]; 29.iv.1933, A.A. Ogloblin [1 ♀ on slide, MLPA]; 23.viii.1933, [A.A. Ogloblin] [1 ♂ on slide, MLPA]; 27.viii.1933, [A.A. Ogloblin] [1 ♂ on slide, MLPA]; 3.x.1933, A.A. Ogloblin [1 ♂ on slide, MLPA]; 10.x.1933, A.A. Ogloblin [1 ♀ on slide, DEZA]; 12.x.1933, A.A. Ogloblin [1 ♀, 2 ♂ on separate slides, MLPA]; [no date], A.A. Ogloblin [1 ♀ on slide, MLPA] [under the same coverslip with a non-type female of G. (Cosmocomoidea) nigrithorax (Ogloblin) and also a female of G. ( Cosmocomoidea ) sp. 3, as defined by Triapitsyn et al. (2008)]; Ruinas Jesuíticas (Jesuit Ruins): 21– 26.viii.2000, P. Fidalgo [4 ♀ on slides, CNCI (1), IMLA (2), UCRC (1)]; 23.viii.2000, P. Fidalgo, yellow pan traps [4 ♀, 1 ♂ on points and 1 ♂ on slide, CNCI, and 3 ♀ on points, UCRC]; 24.viii.2000, P. Fidalgo, yellow pan traps [6 ♀, 2 ♂ on individual slides, CNCI (1 ♀), IMLA (3 ♀, 1 ♂), UCRC (2 ♀, 1 ♂), and 3 ♀, 1 ♂ on points, UCRC]; 25.viii.2000, P. Fidalgo [1 ♀ on slide, UCRC]; 28.viii.2000, P. Fidalgo, yellow pan traps [1 ♀, 1 ♂ on slides, UCRC]; 9.ix–5.x.2001, S.O. Martínez, P. Fidalgo, Malaise trap [1 ♂ on slide, UCRC]; 27°20’12.9’’S 55°31’42.6’’W, 176 m, 16.ii.2009, D.A. Aquino, A.V. Ossipov, S.V. Triapitsyn [1 ♂ on point, UCRC]. Oberá, xi.2006, G.A. Logarzo (from eggs of T. rubromarginata , “isofemale IV”) [1 ♂ on slide, UCRC]. All the specimens collected and slide-mounted by Ogloblin were misidentified by him as either Ooctonus nigriflagellum Girault or Gonatocerus nigriflagellum (Girault) .

Material examined. ARGENTINA. MISIONES, Loreto, Ruinas Jesuíticas , 24.viii.2000, P. Fidalgo, yellow pan traps [1 ♀, UCRC]. This specimen is not included in the paratype series because only the antennae and wings remain.

Description. FEMALE (holotype and paratypes). Body length 1230–1680 µm. Head mostly yellow except trabeculae and interocellar area on vertex brown to dark brown; scape yellow to light brown, pedicel light brown to brown, flagellum dark brown; mesonotum orange-yellow; legs mostly yellow or very light brown except metatibia brown; gaster with 2 brown bands on terga in the middle, basal gastral terga pale or yellowish, apical ones light brown to brown.

Antenna ( Fig. 304 ) with radicle 0.24–0.25x total length of scape, rest of scape 2.8–3.1x as long as wide, slightly longitudinally striate; pedicel a little longer than F1; F1 notably shorter than F2 and without mps, F2– F5 subequal in length, F6 about as long as F7 and shorter than F5, F8 shorter than F7; mps on F2 (1), F3 (1), F4 (usually 2, rarely 1), F5 (2), F6 (2), F7 (2), and F8 (2); clava with 8 mps, 3.8–4.1x as long as wide, a little longer than combined length of F6–F8.

Mesosoma. Mesoscutum and scutellum with inconspicuous sculpture (easier to observe in dry-mounted specimens). Propodeum ( Fig. 305 ) with well-developed submedian carinae and with a few inconspicuous wrinkles between submedian and lateral carinae; submedian carinae notably widening from about middle of propodeum towards its anterior margin, extending almost to but not joining each other at dorsellum; area between submedian carinae almost smooth. Forewing ( Fig. 306 ) 3.1–3.4x as long as wide; longest marginal seta 0.18–0.23x maximum wing width; disc with a conspicuous brownish tinge throughout and a brown band behind and just beyond stigmal vein, bare behind venation except for several setae behind stigmal vein and also at most a few setae just behind apex of marginal vein. Hind wing 18–20x as long as wide; disc mostly bare except for rows of setae along margins and a few scattered setae basally and apically, with a slight, uniform brownish tinge; longest marginal seta 2.1–2.4x maximum wing width.

Gaster longer than mesosoma. Petiole about 1.5x as wide as long, a little narrower basally than apically. Ovipositor 0.6–0.7x length of gaster, not or just barely exserted beyond its apex; ovipositor length: mesotibia length ratio 0.8–0.9:1.

Measurements (µm) of the holotype. Head 234; mesosoma 541; petiole 43; gaster 590; ovipositor 387. Antenna: radicle 55; rest of scape 176; pedicel 70; F1 58; F2 91; F3 94; F4 91; F5 91; F6 79; F7 79; F8 67; clava 264. Forewing 1494:443; longest marginal seta 103. Hind wing 1107:57; longest marginal seta 121.

MALE (paratypes). Body length 1180–1540 µm. Similar to female except for normal sexually dimorphic features and the following. Body ( Fig. 308 ) notably darker, with most of mesonotum and gaster brown but propodeum light brown. Antenna ( Fig. 307 ) with scape about 2.5x as long as wide. Forewing ( Fig. 309 ) 3.0– 3.4x as long as wide. Genitalia as in Fig. 310 .

Diagnosis. Gonatocerus (Cosmocomoidea) garchamp sp. n. is a member of the ater subgroup of the ater species group. It is characterized by the following unique combination: female antenna ( Fig. 304 ) with all flagellomeres dark brown and with mps on F2–F8; propodeum with submedian carinae notably widening from about middle of propodeum towards its anterior margin and extending almost to but not joining each other at dorsellum ( Fig. 305 ); and forewing disc with a brown band behind and just beyond stigmal vein and with a uniform brownish tinge elsewhere, mostly bare behind venation ( Fig. 306 ). It is very similar to G. (Cosmocomoidea) mumu sp. n., which has a second, conspicuous, narrow brown spot in the middle of the forewing disc ( Fig. 385 ). It is also similar to G. (Cosmocomoidea) logarzoi sp. n., but in this species the submedian propodeal carinae do not widen as considerably from about the middle of the propodeum towards the anterior margin and join each other at the dorsellum ( Fig. 364 ).

Etymology. The species name (a noun in apposition) is treated as an arbitrary combination of letters.

Host. Tapajosa rubromarginata (Signoret) (Cicadellidae) .

The records of this species from eggs of Proconiini (Triapitsyn 2006b [as G. sp. 12 from Argentina, tentatively identified as possibly = G. nigriflagellum (Girault) , as misidentified by Ogloblin, in part], Triapitsyn 2007 [as G. sp. 12 (=a new species), in part]) were due to a misidentification of G. (Cosmocomoidea) logarzoi sp. n.

Figures

FIGURES 304 – 306. Gonatocerus (Cosmocomoidea) garchamp ♀ (paratype): 304, antenna; 305, dorsellum and propodeum; 306, forewing.

FIGURES 307 – 310. Gonatocerus (Cosmocomoidea) garchamp ♂ (paratype): 307, antenna; 308, body; 309, forewing; 310, genitalia.

FIGURES 382 – 385. Gonatocerus (Cosmocomoidea) mumu ♀ (382 – 384 – holotype; 385 – paratype): 382, antenna; 383, dorsellum and propodeum; 384, mesosoma and metasoma; 385, forewing.

FIGURES 363 – 366. Gonatocerus (Cosmocomoidea) logarzoi ♀ (363 – holotype; 364 – 366 – paratype): 363, antenna; 364, propodeum; 365, body; 366, forewing.