Xanthopimpla guianensis Gómez & Sääksjärvi, 2014

Gómez, Isrrael C., Sääksjärvi, Ilari E., Broad, Gavin R., Puhakka, Liisa, Castillo, Carol, Peña, Carlos & Pádua, Diego G., 2014, The Neotropical species of Xanthopimpla Saussure (Hymenoptera: Ichneumonidae: Pimplinae), Zootaxa 3774 (1), pp. 57-73 : 60-63

Xanthopimpla guianensis Gómez & Sääksjärvi sp. n.

( Figs. 2 b, 3b, 4b)

Type material. Holotype female ( ZMUT). French Guiana, Kourou, Seag leg. X.2001. Paratypes: Male. ( ZMUT) French Guiana, Kourou, Seag leg. X.2001. Male ( BMNH). French Guiana, Kourou, Seag leg. III.2002.

Female ( Fig. 2 b). Head in dorsal view moderately short, with genae evenly narrowed behind eyes; frons biconcave; posterior ocellus separated from eye by about 0.5 times its diameter; occipital carina complete, ventrally, laterally and dorsally expanded into a very high thin flange ( Fig. 1 b); clypeus relatively flat, basally not clearly separated from face; clypeal apex truncate; malar space about 0.15 times as long as basal mandibular width; face polished and pubescent, about 1.0 times as wide as medially high. Pronotum with apical edge strongly reflexed and raised, overlapping propleura. Mesoscutum pubescent, with notauli strongly marked anteriorly, bounded anteriorly by high triangular crests; scutellum pubescent and convex, laterally with high carinae. Mesopleuron polished, with ventral part densely pubescent; epicnemial carina reaching well above level of lower corner of pronotum, ventrally raised. Metapleuron convex, smooth; submetapleural carina sharp but low, extending back to insertion of hind coxa. Propodeum in profile declivous ( Fig. 4 b); posterior transverse carina complete and slightly curved; lateromedian longitudinal carinae present defining area superomedia ( Fig. 3 b); lateral longitudinal carina present; pleural carina complete. Fore wing length about 12 mm; areolet complete; vein Rs slightly sinuous. Tergite 1 of metasoma about 1.2 times as long as posteriorly broad, with lateral longitudinal and lateromedian longitudinal carinae strongly developed anteriorly; tergite 2 about 0.7 times as long as posteriorly broad, with a more or less rhombic raised central area. Claws of hind leg large, without a basal lobe and with four strong setae basally. Ovipositor sheath 0.8 times as long as hind tibia; apex of ovipositor evenly tapered and slightly decurved.

Coloration. Yellow with the following areas blackish: transverse bands across mesoscutum centrally and posteriorly, scuto-scutellar groove, anterior part of propodeum, interocellar area, stripes leading from posterior ocelli to dorso-lateral small patches on occipital area, small patch on mesosternum. Tergites brownish with posterior margins of tergites 1–3 yellow, posterior tergites 4+ completely blackish. Scape yellow in frontal view and brown dorsally. Ovipositor sheath proximally brown, infuscate distally. Wings slightly yellowish, pterostigma yellowish.

Male. Similar to female.

Diagnosis. This species can be distinguished from all other Neotropical Xanthopimpla by the combination of the following characters: 1) occipital carina complete and expanded into a high thin flange; 2) propodeum with complete and exceptionally strong carination; 3) tergite 1 about 1.2 times as long as wide; and 4) posterior ocellus rather small, separated from eye by about 0.5 times its diameter. Xanthopimpla guianensis resembles X.

pucallpensis sp. n. However, its smaller ocellus, defined area dentipara, darker metasoma, and more robust body differentiate this species from X. pucallpensis sp. n.

Biological notes. Nothing is known about the hosts of this species.

Etymology. The name guianensis refers to French Guiana. This is the first Xanthopimpla species described from this country.

Distribution. French Guiana.

Figures

FIGURE 1. Comparison between the aurita species-group (left), the amazonica species-group (center), and the unplaced species X. peruana (right). (a) Xanthopimpla aurita; (b) X. vidali; (c) X. peruana; (d) X. aurita; (e) X. guianensis; (f) X. peruana; (g) X. allpahuaya; (h) X. guianensis; and (i) X. peruana.

FIGURE 2. Habitus of the amazonica species-group (female holotypes). (a) Xanthopimpla amazonica; (b) X. guianensis; (c) X. jussilai; (d) X. pucallpensis; (e) X. vidali.

FIGURE 3. Propodeum, dorsal view, of the amazonica species-group (female holotypes). (a) Xanthopimpla amazonica; (b) X. guianensis; (c) X. jussilai; (d) X. pucallpensis; (e) X. vidali.

FIGURE 4. Propodeum, lateral view, of the amazonica species group (female holotypes). (4) Xanthopimpla amazonica; (b) X. guianensis; (c) X. jussilai; (d) X. pucallpensis; (e) X. vidali.