Gonatocerus (Cosmocomoidea) deleoni Triapitsyn, Logarzo & Virla, 2008

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 : 143-145

Gonatocerus (Cosmocomoidea) deleoni Triapitsyn, Logarzo & Virla, 2008

( Figs 286–293 )

Gonatocerus tuberculifemur (Ogloblin) “Clade 2”: de León, Logarzo et al. 2006a: 40–42; de León, Logarzo et al. 2006b: 44–46; de León et al. 2006c: 48–50 (molecular data); de León et al. 2007: 73–75; de León & Morgan 2007: 83 (molecular data); de León et al. 2008: 97–106 (molecular data); Hoddle et al. 2008: 66–69 (competition studies under quarantine laboratory conditions).

Gonatocerus deleoni Triapitsyn, Logarzo & Virla in Triapitsyn et al. 2008: 5 –10, 21–26. Holotype female [ MLPA] (examined, see Triapitsyn et al. (2008) for detailed label data). Type locality: Hurlingham , Buenos Aires , Argentina (first generation progeny, from colony at USDA, ARS South American Biological Control Laboratory, originally from San Rafael , Mendoza, Argentina) .

Gonatocerus deleoni Triapitsyn, Logarzo & Virla: Luft Albarracin et al. 2009 : 9 (list; distribution and host association in Argentina).

Material examined. See Triapitsyn et al. (2008).

Description. See Triapitsyn et al. (2008) for a detailed description and diagnosis.

Diagnosis. Besides the difference in color of the scape of the female antenna mentioned in the key, the following morphological features of the male distinguish G. (Cosmocomoidea) deleoni from the very similar G. (Cosmocomoidea) tuberculifemur (Ogloblin) s. str. (i.e., from its type locality) and also from G. ( Cosmocomoidea ) sp. near tuberculifemur “Clade 1” (Triapitsyn et al. 2008): submedian carinae on the propodeum ( Fig. 291 ) relatively less prominent anteriorly, not extending to the anterior margin of the propodeum (almost extending to the anterior margin of the propodeum in G. tuberculifemur s. str. and G. sp. near tuberculifemur “Clade 1”); and apex of the apodeme of the genital sternite ( Fig. 292 ) more or less acute (blunt in G. tuberculifemur s. str. ( Fig. 484 ) and G. sp. near tuberculifemur “Clade 1”). Gonatocerus deleoni also differs genetically, and is reproductively isolated from the other forms that comprise the G. tuberculifemur complex (de León et al. 2007, 2008; Triapitsyn et al. 2008). Also illustrated here are the antenna ( Fig. 286 ), mesosoma and metasoma ( Fig. 288 ), propodeum ( Fig. 287 ), and forewing ( Fig. 289 ) of the female, as well as the antenna ( Fig. 290 ) and forewing ( Fig. 293 ) of the male.

Although G. (Cosmocomoidea) deleoni is a member of the ater species group its subgroup placement is unclear. Morphologically, it fits better the ater subgroup but molecularly, it clusters with the morrilli subgroup species based on both COI and ITS2 sequence data (de León et al. 2008; Triapitsyn et al. 2008). Distribution. NEOTROPICAL: Argentina (General Alvear, Rama Caída, and San Rafael areas of Mendoza) (Triapitsyn et al. 2008).

Hosts. The natural hosts of G. deleoni are unknown. Factitious hosts are Tapajosa rubromarginata (Signoret) (reared from sentinel eggs in the field and then maintained in the laboratory in Argentina), and also Homalodisca vitripennis (Germar) under quarantine laboratory conditions in the USA (Triapitsyn et al. 2008) ( Cicadellidae ). A colony of G. deleoni of Mendoza Province, Argentina origin (Triapitsyn et al. 2008) is currently being maintained on H. vitripennis eggs in the quarantine laboratory of the University of California at Riverside, California, USA.

Figures

FIGURES 286 – 289. Gonatocerus (Cosmocomoidea) deleoni ♀ (holotype): 286, antenna; 287, propodeum; 288, mesosoma and metasoma; 289, forewing.

FIGURES 290 – 293. Gonatocerus (Cosmocomoidea) deleoni ♂ (paratypes): 290, antenna; 291, dorsellum and propodeum; 292, genitalia; 293, forewing.

FIGURES 482 – 484. Gonatocerus (Cosmocomoidea) tuberculifemur (482, 483 – ♀; 484 – ♂, Pucará, Parque Nacional Lanín, Neuquén, Argentina): 482, antenna; 483, dorsellum and propodeum; 484, genitalia.