Forrestopius wankawillka Alvarado, 2021

Alvarado, Mabel & Palacio, Edgard, 2021, Forrestopius Gauld & Sithole, 2002 (Hymenoptera: Ichneumonidae: Metopiinae) in South America, Zootaxa 5040 (2), pp. 265-282 : 277-279

Forrestopius wankawillka Alvarado sp. nov.

( Figs 8 , 10C )

Holotype. ♀, “ PERU: HV [Huancavelica], Totoral chico, 12°45’3.15”S / 75°3’17.4”W, 4501 m, 08-17.xii.2013, I. Medina ” ( MUSM).

Diagnosis. This species can be recognized by the following combination of characters: mandible with two teeth, scape black ( Fig. 8C ), face and clypeus forming a continuous surface, pronotum with a single wrinkle arising from pronotal pit ( Fig. 8B ) with its upper end reaching about lower third of way to anterior margin and concolor black, propodeum without lateromedian longitudinal carinae, and metatarsomeres brownish.

Description. Female: Body length 4.3 mm. Fore wing length 3.6 mm.

Head. Face and clypeus forming a continuous surface, 1.0× as long as wide, striate with isolated punctures ( Fig. 8C ); labrum not exposed when mandibles closed; mandibles with two teeth; malar space 1.4× as long as basal mandibular width; lateral ocellus separated from compound eye by about 1.9× maximum ocellar diameter; distance between ocelli 1.5× maximum ocellar diameter; vertex behind ocellar triangle slightly declivous, occiput concave; gena in lateral view 1.3× as long as compound eye; antenna with 20 flagellomeres, ratio of length from second to fourth flagellomeres: 1.2:1.3:1.3, subapical flagellomere elongate, 1.2× as long as centrally broad.

Mesosoma . Pronotum with wrinkle arising from pronotal pit, its upper end reaching about lower third of way to anterior margin ( Fig. 8B ); metapleuron polished with isolated setae, posteroventrally smooth; submetapleural carina scrobiculate, anteriorly expanded into conspicuous triangular lobe. Propodeum without lateromedian longitudinal carina, area basalis + superomedia not delineated; lateral longitudinal carinae absent; posterior transverse carina present only laterally to enclose area coxalis. Fore wing with vein Cu 1 a between Cu 1 b and 2 m-cu 3.0× as long as Cu 1 between Rs & M and 1 m-cu; 2 rs-m 0.7× as long as abscissa of M between 2 rs-m and 2 m-cu. Hind wing with distal abscissa of M indistinguishable, distal abscissa of Cu 1 and 1 A sclerotized throughout. Outer metatibial spur 0.6× as long as inner spur.

Metasoma. Tergite I 1.1× as long as posteriorly wide, lateromedian carina absent; tergite II 0.8× as long as posteriorly wide; laterotergite II 0.2× as wide as long; laterotergite III 0.5× as wide as long, wedge-shaped, mesal edge convex.

Colour. Head extensively black except mouth parts (mandible black), pedicel and flagellomeres dark brown. Mesosoma black except tibiae and tarsomeres brownish ( Fig. 8A ), and propodeum black with metallic blue reflection; metasoma black with metallic blue reflections on terga, sterna, ovipositor and valvae brown.

Male: Unknown

Remarks. This species is probably the one found at highest elevation within Metopiinae (4501 m), it occurs in Puna grassland at difference of other Forrestopius . This species is only known from Peru ( Fig. 10C )

Etymology. The specific epithet wankawillka means ‘sacred stone’ in the Quechua language. It is treated as a noun in apposition.

Figures

FIGURE 8. Details of Forrestopius wankawillka, sp. nov. A. Habitus of female, in lateral view (scale bar = 1 mm) B. Head and pronotum, in lateral view C. Facial view.

FIGURE 10. Geographic distribution of the Forrestopius species