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 The Stigmella marmorea group (designated here) (species 22–28) Diagnostics ( Fig. 37 ): forewing varied: speckled or with one–two fasciae, occasionally glossy, without fascia; at least one species is known with distinctive androconia on abdomen. In male genitalia, phallus sometimes with very small to large apical spines and always with many loose large, mostly horn-like, cornuti; valva with two apical processes; transtilla with or without very small sublateral processes; uncus often with four caudal papillae, sometimes bilobed; gnathos with two caudal processes; vinculum large (occassionally very large), with small to large lateral lobes. Currently the group comprises of about 29 species from the Andes of Colombia, Ecuador, Peru, Bolivia, Chile and Argentina: twenty-two of the species are described, remaining undescribed (Stonis et al . in prep.). Trophically species are associated with at least five plant families: Euphorbiaceae , Rosaceae , Urticaceae , Lamiaceae , and Asteraceae . Leaf-mines as rather slender galleries, occasionally with distal parts resembling blotches.