24. Stigmella altimontana Remeikis & Stonis, 2016

(Figs 1, 32, 37)

Stigmella altimontana Remeikis & Stonis, 2016, in Stonis et al. 2016d: 51, figs 133–142.

Material examined. 1 ♂ (holotype), 1 ♀ (paratype), PERU, Dept. Ancash, 50 km SE Huaraz, Rio Puma Pampa, Valley Ingenio, 9°53'53"S, 77° 15'40"W, elevation 4200–4350 m, 14–15.ii.1987, O. Karsholt, genitalia slide no. RA 539♂ (holotype), RA 540♀ (paratype) ; 1 ♂ (paratype), 35 km SE Huaraz, Cerro Cahuish, Quabrada Pucavado, 9°40'50"S, 77°13'32"W, elevation 4100 m, 15–18.ii.1987, O. Karsholt, genitalia slide no. RA 538♂ (ZMUC).

Diagnosis. Belongs to the S. marmorea species group. Externally very similar to S. auriargentata Remeikis & Stonis. The combination of specific set of numerous very large cornuti, transtilla without sublateral processes, bilobed uncus, and golden grey forewing with silver shining apical area distinguishes S. altimontana from all other Stigmella species.

Male (Fig. 32). Described in Stonis et al. 2016d: 51, figs 133–135. Forewing length 2.8–3.2 mm; wingspan 6.1–6.9 mm.

Female. Externally similar to male.

Male genitalia. Illustrated in Stonis et al. 2016d: figs 136–141.

Female genitalia. Illustrated in Stonis et al. 2016d: fig. 142.

Bionomics Adults fly in February. Otherwise biology unknown.

Distribution (Fig. 1). This species occurs in the high Peruvian Andes (Peru: Ancash Departamento) at altitudes about 4100–4350 m.