16. Stigmella angusta Diškus & Stonis, 2016

(Figs 1, 4, 34, 37)

Stigmella angusta Diškus & Stonis, in Stonis et al. 2016d: 61, figs 167–173.

Material examined. 1 ♂ (holotype), PERU, Dept. Lima, 10 km N Oyón Quabrada Quichas Pueblo Quichas, 10°34'17"S, 76°46'03"W, 4000 m, 24–26.ii.1987, O. Karsholt, genitalia slide no. AD 633♂ (ZMUC) .

Diagnosis. The combination of narrow valva, very long and narrow lateral lobes of vinculum and phallus, highly specific set of compactly assembled cornuti, and speckled forewing distinguishes S. angusta from all other Stigmella species.

Male (Fig. 34). Described in Stonis et al. 2016d: 61, figs 167, 168. Forewing length about 4.0 mm; wingspan about 8.6 mm.

Female. Unknown.

Male genitalia. Illustrated in Stonis et al. 2016d: figs 169–173.

Bionomics Adults fly in February. Otherwise biology unknown.

Distribution (Fig. 1). This species occurs in the high Peruvian Andes (Peru: Lima Departamento) at altitudes about 4000 m (Fig. 4).