Nectopsyche aureovittata Flint 1983

Nectopsyche aureovittata

This species appears to be a member of the N. quatuorguttata group, related to the following described species, N. maculipennis. It is most easily differentiated by the coloration of the forewing, especially the pale, golden band along the posterior margin. In N. maculipennis, this is the darkest area of the wing.

ADULT.—Length of forewing, 6.5 mm, 5.5 mm. Color dark brown, maculate; antennae annulate basally, brown apically; body brown, legs, head, and thorax dorsally with white hair; forewing with chevron-shaped, transverse, brown marks, broadest basally and at center of wing, broken into spots apically, marks separated by silvery white hair, anal and apical margins with golden-yellow hair. Eyes of male small; eye in ventral aspect about width of interocular distance.

Male Genitalia: Ninth segment in lateral aspect slightly oblique and shortened, with a small dorsomesal process; dorsolateral arms short and widened apically. Tenth tergite elongate, with a small dorsal tooth and elongate apex. Clasper with basodorsal lobe enlarged apically; clasper without ventral margin enlarged basally, although slightly produced here; apicomesal lobe small, not reaching tip of clasper; basoventral lobes separate, broad, scooplike. Aedeagus with large ventral plate and small internal sclerite.

MATERIAL.—Holotype (male): ARGENTINA, PCIA. MISIONES, Río Iguazu, Camp Nañdu, 25 Nov 1973, O.S. Flint, Jr., USNM Type 100547.

Paratypes: Same data as holotype, 7, 1; Arroyo Saura, 9 km N L.N. Alem, 20 Nov 1973, O.S. Flint, Jr., 1. PARAGUAY, DPTO. AMAMBAY, 2 km S Cerro Corá, 28 Nov 1973, O.S. Flint, Jr., 5. DPTO. SAN PEDRO, Arroyo Tapiracuay, San Estanislao, 27 Nov 1973, O.S. Flint, Jr., 1.