Adults were collected in November.
Male. Forewing length 4.0 mm. Head: frons shining pale ochreous, shining white towards clypeus, vertex and neck tufts shining pale bronze brown, lined white laterally, collar shining pale bronze brown; labial palpus, first segment very short, white, second segment three-quarters of the length of third, dorsally bronze brown, ventrally white, third segment white, lined dark brown laterally; scape dorsally bronze brown with a white anterior line, ventrally white, antenna shining dark brown with an interrupted white line from base to one-half, followed towards apex by, respectively, a short annulated section of approximately six segments, fourteen dark brown, nine white and sixteen dark brown segments at apex. Thorax shining pale bronze brown with a short indistinct white median line posteriorly, tegulae shining pale bronze brown. Legs: dark brown, femora of foreleg and midleg shining ochreous-white, femur of hindleg shining grey, foreleg with a white line on tibia and tarsal segments one to four, segment five entirely white, tibia of midleg with an indistinct whitish medial spot and a white apical ring, tarsal segments with white apical rings, tibia of hindleg with a white basal streak and white medial and apical rings, tarsal segments missing, spurs ochreous-grey, apically lighter. Forewing shining dark brown, in the basal area at one-fifth an irregular inwardly oblique silver metallic fascia, interrupted in the costal half and widening towards dorsum but not reaching it, at one-half a broad tubercular pale golden metallic fascia, perpendicular on dorsum, at three-quarters an outward oblique tubercular pale golden metallic fascia, narrowed towards costa, outwardly edged by a narrow white costal streak, apical line as a few silver metallic scales with bluish gloss in the middle of the apical area and a narrow white streak in the cilia at apex, cilia dark brown, paler on dorsum towards base. Hindwing shining dark brown, cilia brown. Underside: forewing shining greyish brown with the white streak at apex visible, hindwing at costa greyish brown, grey at dorsum. Abdomen dorsally shining dark brown, segments two, three and four with pale yellow spots, laterally shining grey, ventrally segments broadly banded shining pale yellowish grey posteriorly, anal tuft greyish brown, ventrally mixed yellowish white.
The species is dedicated to Dr Adriana Chalup Navarro from Tucumán, Argentina, for her collaboration with the Netherlands Entomological Expedition to the north of Argentina in 1995-1996.
As of this edit, this article uses content from "The genera Cosmopterix Hübner and Pebobs Hodges in the New World with special attention to the Neotropical fauna (Lepidoptera: Cosmopterigidae)", which is licensed in a way that permits reuse under the Creative Commons Attribution-ShareAlike 3.0 Unported License, but not under the GFDL. All relevant terms must be followed.
|Wikispecies has information related to: Cosmopterix chalupae|
|Wikimedia Commons has media related to Cosmopterix chalupae.|
|This article on a moth of the Cosmopterigidae family is a stub. You can help Wikipedia by expanding it.|