Gonatocerus (Gonatocerus) urocerus Ogloblin 1935
Creators: name: Triapitsyn, Serguei V.
name: Huber, John T.
name: Logarzo, Guillermo A.
name: Berezovskiy, Vladimir V.
name: Aquino, Daniel A.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mymaridae
Gonatocerus
Gonatocerus urocerus

description: Gonatocerus (Gonatocerus) urocerus Ogloblin, 1935
(Figs 59–61)
Gonatocerus urocerus Ogloblin 1935: 72 –74 + plates (láminas) VI and VII (illustrations). Type locality: La Plata, Buenos Aires, Argentina.
Gonatocerus (Gonatocerus) urocerus Ogloblin: De Santis 1967: 105 (catalog).
Gonatocerus urocerus Ogloblin: De Santis 1989: 72 (catalog, record from Uruguay); Yoshimoto 1990: 41 (list); Loiácono et al. 2005: 17 (type information, incorrectly listed as being lost); Luft Albarracin et al. 2009: 10 (list; distribution in Argentina).
Type material examined. Lectotype female [MLPA], here designated to avoid confusion about the status of the type specimens of this species, on slide labeled: 1. “ Gonatocerus urocerus A. O. ♀ La Plata vi.1931. J. A. Rosas Costa Typus.”; 2. “3867”. The lectotype, although uncleared, is in good condition, complete, perfectly spread out and mounted dorsoventrally. Paralectotypes [both MLPA]: 1 ♀ on slide labeled: “ Gonatocerus urocerus A. O. ♀ La Plata. vi.1931. J. A. Rosas Costa. Paratypus [ip]”; 1 ♀ on slide labeled: “ Gonatocerus urocerus A. O ♀ [mexicanus ♀ Perk. – ip] La Plata vi.1931. J. A Rosas Costa”.
Material examined. ARGENTINA. BUENOS AIRES: Bella Vista, 7.iii.1959, A.A. Ogloblin [1 ♀, MLPA]. Moreno, 34°08’57’’S 58°46’57’’W, C. Coviella: 4–14.i.2005 [1 ♀, UCRC]; 17.iv.2005 [1 ♀, UCRC]. Tigre, 34°23’50’’S 58°34’32’’W, 5 m, G.A. Logarzo: 9–16.xi.2005 [1 ♀, UCRC]; 23–28.xi.2005 [4 ♀, CNCI, UCRC]; 3–10.i.2006 [1 ♀, UCRC]; 2–11.ii.2006 [2 ♀, UCRC]; 1–14.iv.2006 [1 ♀, UCRC]. MISIONES, Loreto, 27.x.1936, A.A. Ogloblin [1 ♀, MLPA]. URUGUAY. ROCHA: Laguna Merín, Río Cebollatí, 21.ii.1962, C.S. Carbonell, L. Covelo de Zolessi [3 ♀, MLPA]. Parque Nacional Lacustre, Reserva Laguna Rocha, 34°40’S 54°17’W, 3 m, 6–23.xii.2002, S. & J. Peck [2 ♀, CNCI].
Redescription. FEMALE (lectotype, paralectotypes, and non-type specimens). Body length 693–924 µm. Body mostly dark brown except base and apex of gaster, and also parts of mesosoma light brown; scape and pedicel light brown to brown, except radicle yellowish to light brown, flagellum dark brown; legs mostly light brown except tarsi usually a little darker, (brown).
Antenna (Fig. 59) with radicle 3.8–4.0x as long as wide, 0.33–0.4x total length of scape, rest of scape about 3.4x as long as wide, smooth; F1 a little shorter than pedicel or F2; F2–F6 more or less subequal in length, a little shorter than F7 or F8, mps on F4 (0 or 1), F5 (2), F6 (0 or 1), F7 (2), F8 (2); clava with 8 mps, 3.1–3.5x as long as wide, about as long as combined length of F6–F8.
Mesosoma (Fig. 60). Pronotum 2-lobed (mediolongitudinally divided), not entire as drawn by Ogloblin (1935). Mesoscutum and posterior scutellum with weak sculpture. Dorsellum rhomboidal. Forewing (Fig. 61) 4.4–4.6x as long as wide; longest marginal seta about 0.5x maximum wing width. Forewing disc slightly infumate, bare behind submarginal vein, and setose behind and beyond marginal vein. Hind wing 29–32x as long as wide; disc mostly bare except for rows of setae along margins and several scattered setae, slightly infumate at apex; longest marginal seta 4.4–4.7x maximum wing width.
Metasoma (Fig. 60) longer than mesosoma. Petiole very short, much wider than long. Ovipositor with a small basal loop, almost entire length of gaster, exserted beyond its apex by about 0.3x own length; ovipositor length: mesotibia length ratio 1.9–2.1:1.
Measurements (µm) of the lectotype. Body: total body length: 769; mesosoma 297; petiole 9; gaster 379; ovipositor 536. Antenna: radicle 70; rest of scape 91; pedicel 55; F1 39; F2 46; F3 46; F4 43; F5 48; F6 47; F7 52; F8 52; clava 158. Forewing 898:197; longest marginal seta 103. Hind wing 688:24; longest marginal seta 112.
MALE. Unknown.
Diagnosis. Gonatocerus (Gonatocerus) urocerus is characterized by the female antenna (Fig. 59) with mps usually on F4, F5, F7, and F8, and also sometimes one mps on F6, a narrow forewing (4.4–4.6x as long as wide) with a slightly and uniformly infumate disc (Fig. 61), and an ovipositor exserted beyond the apex of the gaster by about 0.3x own length (Fig. 60). It could be confused with G. (Gonatocerus) mexicanus, whose female antenna (Fig. 43) has two mps on F6, and whose ovipositor has usually a relatively larger basal loop (Fig. 45).
Distribution. NEOTROPICAL: Argentina, and Uruguay.
Hosts. Unknown.
description: Published as part of 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, pp. 1-243 in Zootaxa 2456 on pages 40-41, DOI: 10.5281/zenodo.894928