Stigmella pseudorobusta Remeikis & Stonis 2016

7. Stigmella pseudorobusta Remeikis & Stonis, 2016

(Figs 1, 32, 37)

Stigmella pseudorobusta Remeikis & Stonis; in Stonis et al. 2016d: 41 –44, figs 108–112.

Material examined. 3 ♂ (holotype and paratypes), 2 ♀ (paratypes), PERU, Dept. Ancash, 35 km SE Huaraz, Cerro Cahuish, Quabrada Pucavado, 9°40'50"S, 77°13'32"W, elevation about 4100 m, 15–18.iii.1987, O. Karsholt, genitalia slide nos RA 568♂ (holotype), RA 572♂, RA 577♂, RA 581♀ (paratypes) (ZMUC).

Diagnosis. Belongs to the Stigmella expressa group. The combination of very long vinculum, gnathos with two closely juxtaposed processes, large apical processes of valva, and narrow uncus distinguishes S. pseudorobusta from all other members of the group, except the most similar S. expressa Remeikis & Stonis, sp. nov. From the latter new species differs in the much shorter, caudally excavated ventral plate of vinculum in the male genitalia and in the ductus spermathecae with 5.5 coils in the female genitalia.

Male (Fig. 32). Described in Stonis et al. 2016d: 41, fig. 108. Forewing length 4.0– 4.5 mm; wingspan 8.6–9.6 mm.

Female. Described in Stonis et al. 2016d: 43.

Male genitalia. Illustrated in Stonis et al. 2016d: figs 109–111.

Female genitalia. Illustrated in Stonis et al. 2016d: fig. 112.

Bionomics Adults fly in March. Otherwise biology unknown.

Distribution (Fig. 1). This species occurs in the high Peruvian Andes (Peru: Ancash Departamento) at altitudes about 4100 m.