Nephelomilta chalcedona (Cerny, 2009) Volynkin & Černý, 2018

Volynkin, Anton V. & Černý, Karel, 2018, Revision of the genus Nephelomilta Hampson, 1900, with descriptions of twelve new species and two new subspecies (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4472 (3), pp. 401-451 : 422

The N. chalcedona species-group

Diagnosis. The male and female genitalia of the species of the species group have no differences from those of the N. pusilla species-group, except for the shape of the ampulla (which is lobe-like in the N. chalcedona species-group and trigonal the N. pusilla species-group), but due to their unusual appearance N. chalcedona and N. ferruginea sp. nov. are separated here into a different species group.

Description of external morphology. Body covered with whitish scales with admixture of brown scales. Forewing pattern consists of broad brown subbasal spot, blackish brown antemedial line curved in cell, broad rusty- or reddish-brown area from antemedial line to outer wing margin, dark brown shades along cell and in submarginal area, dark brown spot opposite forewing androconial pocket, diffuse blackish-brown medial spot and diffuse blackish-brown discal spot presented as complex of two dots of different size in males and V-like situated three dots in females; areas between subbasal spot and antemedial line, along costa and at wing apex creamy white; cilia creamy white. Hindwing creamy white, with intense dark grey suffusion; discal spot large, diffuse, dark grey.