Illustrated review of the leaf-mining Nepticulidae of the central Andes (Peru and Bolivia) Author Stonis, Jonas R. Author Diškus, Arūnas Author Remeikis, Andrius Author Karsholt, Ole Author Torres, Nixon Cumbicus text Zootaxa 2017 4257 1 1 70 journal article 33173 10.5281/zenodo.556874 90f99d44-c68c-4602-90f1-2802409db73d 1175-5326 556874 98E19676-EC03-4026-B4B6-39BEC10B5A05 39. Stigmella kristenseni Diškus & Stonis, 2016 ( Figs 1 , 34 , 37 ) Stigmella kristenseni Diškus & Stonis, in Stonis et al . 2016d : 69 , figs 191–203. Material examined. 1 ♂ ( holotype ), PERU , Dept. Lima , 45 km NE Chosica , Millo Valley , Quabrada Yanac , 11°36'30"S , 76°24'18"W , elevation ca. 4000 m , 26–28.i.1987 , O. Karsholt , genitalia slide no. AD 670♂ ( ZMUC ) ; 1 ♂ , Dept. Ayacucho , 25 W Puquio , Senal Cerro Palmaderas , 14°39'41"S , 74°27'31"W , elevation ca. 4100 m , 10– 12.iii.1987 , O. Karsholt , genitalia slide no. AD 654♂ ( ZMUC ) . Diagnosis. This rather large, externally speckled, in male genitalia highly peculiar species differs from other known Stigmella by presence of spined inner process of valva, rod-like thickening of vinculum plate and narrow, apically widening spinose phallus. Male (Figs 191, 192). Described in Stonis et al . 2016d : 69, figs 191, 192. Forewing length about 3.8 mm ; wingspan about 8.1–8.2 mm . Female. Unknown. Male genitalia. Illustrated in Stonis et al . 2016d : figs 193–203. Bionomics Adults fly in late January and March. Otherwise biology unknown. Distribution ( Fig. 1 ). This species occurs in the high Peruvian Andes ( Peru : Lima Departamento and Ayacucho Departamento) at altitudes about 4000–4100 m .