Gonatocerus (Gonatocerus) appendiculatus
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 appendiculatus

description: Gonatocerus (Gonatocerus) appendiculatus (Ogloblin, 1939)
(Figs 12–16)
Lymaenon appendiculatus Ogloblin 1939: 239 –241 + plate (lámina) III (illustrations). Type locality: Loreto, Misiones, Argentina.
Gonatocerus (Gonatocerus) appendiculatus (Ogloblin): De Santis 1967: 103 (catalog).
Gonatocerus appendiculatus (Ogloblin): Yoshimoto 1990: 39 (list); Luft Albarracin et al. 2009: 9 (list; distribution in Argentina).
Lymaenon appendiculatus Ogloblin: Loiácono et al. 2005: 12 (type information).
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 claviger [emn, co] A. O. ♀ appendicu… [illegible, apparently added ip later] Loreto, Misiones Fig. [iR, ip] 5.ix.1932. A. O. Typus”; 2. ‘3852”; 3. [red circle] “Lectotype”. The lectotype is complete, uncleared, and mounted dorsoventrally. Paralectotypes [both MLPA]: 1 ♂ on slide labeled: 1. “ Gonatocerus appendiculatus [apparently added ip later] claviger [co] A. O. ♂ Loreto, Misiones A. A. O. 23.ix.1932 Campo Typus”, 2. ‘3851”; 1 ♂ on slide labeled: “ Gonatocerus appendiculatus [apparently added ip later] claviger [erased] ♂ Loreto, Misiones 21.v.1934 ”.
The published collection date of one of the original male syntypes (23.iv.1932) contradicts the collection date on the paralectotype slide (23.ix.1932). The latter is likely the correct one because Ogloblin apparently confused “x” with “v” in the month “ix” of this specimen’s collection date. The remaining two original syntype specimens mentioned, a female (collected 5.ix.1932) and a male (collected 21.v.1934), are missing from MLPA.
Material examined. ARGENTINA. BUENOS AIRES: Luján, Universidad Nacional de Luján, 34°35'07"S 59°04'45"W, 32 m, C. Coviella: 17.iii.2005 [2 ♀, UCRC]; 20.x.2006 [1 ♀, UCRC]. Tigre: ii.1941, A.A. Ogloblin [1 ♀, MLPA]; 34°23’50’’S 58°34’32’’W, 5 m, 23–28.xi.2005, G.A. Logarzo [1 ♂, UCRC]. Vieytes, 35°18’26.56’’S 57°34’02.99’’W, 16 m, 29.ii.2008, D.A. Aquino [2 ♀, MLPA]. MISIONES: Loreto, [A.A. Ogloblin]: 9.iv.1934 [1 ♀, MLPA]; 14.iv.1934 [1 ♀, MLPA]; 15.iv.1934 [1 ♀, MLPA]; 27.xi.1936 [1 ♂, MLPA]. San Ignacio: 23.iii.1935, [A.A. Ogloblin] [1 ♀, MLPA]; Chacra Yabebirí (Yabebiry), xi.1953, V.K. Ogloblina (V.K. Bardige de Ogloblin) [1 ♂, MLPA]. SALTA, Río Piedras, 30.v.1948, A.A. Ogloblin [1 ♀, MLPA]. URUGUAY. SORIANO, Arroyo Cololó, 16.i.1962, C.S. Carbonell et al. [2 ♀, 5 ♂, MLPA].
Redescription. FEMALE (lectotype). Body (Fig. 13) mostly brown; appendages mostly light brown, flagellum and metacoxa brown to dark brown, radicle yellowish.
Antenna (Fig. 12) with radicle about 4.6x as long as wide, rest of scape about 5.6x as long as wide, lightly striate; pedicel longer than F1; F1–F6 narrower than F7 or F8, F3 the longest and F4 and F6 the shortest of funicle segments; F1–F6 without mps, F7 and F8 each with 2 mps; clava incised at apex, with 8 mps, 3.6x as long as wide, longer than combined length of F4–F8.
Mesosoma. Pronotum 2-lobed (mediolongitudinally divided), not entire as drawn in Fig. 60 by Ogloblin (1939). Dorsellum rhomboidal. Forewing (Fig. 14) about 5.2x as long as wide; longest marginal seta about 0.6x maximum wing width. Forewing disc slightly infumate, with an infuscation behind stigmal vein and apex of marginal vein, bare behind submarginal vein, sparsely setose behind marginal and stigmal veins, and almost bare just beyond stigmal vein; remainder of disc densely setose. Hind wing about 28x as long as wide; blade bare except for rows of setae along margins; longest marginal seta about 3.4x maximum wing width.
Metasoma. Petiole short, a little wider than long, trapezoidal. Ovipositor about 0.8x length of gaster, not exserted beyond its apex. Ovipositor length: mesotibia length ratio about 1.4:1.
Measurements (µm) of the lectotype. Body: total body length: 935; head 147; mesosoma 350; petiole 27; gaster 411; ovipositor 336. Antenna: radicle 70; rest of scape 136; pedicel 61; F1 39; F2 40; F3 50; F4 28; F5 30; F6 28; F7 41; F8 40; clava 205. Forewing 892:173; longest marginal seta 106. Hind wing 768:27; longest marginal seta 93.
MALE (paralectotype collected 23.ix.1932 and non-type specimen from Loreto, Misiones, collected 27.xi.1936). Body length 984–1076 µm. Similar to female except for normal sexually dimorphic features and the following. Antenna (Fig. 15) with scape minus radicle about 3.8x as long as wide. Forewing (Fig. 16) 4.8– 5.0x as long as wide.
Diagnosis. Gonatocerus (Gonatocerus) appendiculatus is characterized by the peculiar female antenna (Fig. 12) with the tip of the clava incised, thus narrow and fingerlike, and also by the narrow forewing (about 5.2x as long as wide) (Fig. 14).
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 18-20, DOI: 10.5281/zenodo.894928