The Ando-Patagonian group (Lepidoptera, Nepticulidae) with description of new species from Ecuador, Peru and Argentina.

On the basis of morphological studies of collection samples from the Andes (Ecuador, Peru and Argentina), we describe five new species of Stigmella Schrank (Lepidoptera: Nepticulidae): S. varispinella Diškus & Stonis, sp. nov.

Leaf-mining Nepticulidae (Lepidoptera) from record high altitudes: documenting an entire new fauna in the Andean páramo and puna.

The monograph treats 29 species of leaf-mining pygmy moths (Insecta, Lepidoptera, Nepticulidae) discovered in the northern Andean bush and grass páramo and the central Andean puna at altitudes above 3700 m. They represent the world's highest-altitudinal Nepticulidae fauna known. The height record belongs to Stigmella nivea sp.