Setiostoma ochrobasis Duckworth 1971

Setiostoma ochrobasis

Alar expanse 8–9 mm.

Eye index .75 male.

Antenna dark brown, scape shaded with pale yellow, basal segments beyond scape annulated with pale yellow; sensory hairs of male 2.5–3× diameter of shaft basally, gradually reduced to 0.5× at apex. Head pale yellow, flecked with brown. Labial palpus with basal segment dark brown, second and apical segment pale yellow, flecked with brown. Maxillary palpus pale yellow, base of proboscis dark brown. Thorax dark brown. Legs dark brown with two white tarsal rings, mid and hindlegs white tipped. Forewing dark brown, with pale yellow transverse band from costa to dorsum at basal fourth, parallel to distal margin of yellow band extends a dark brown line followed by a broader band of iridescent blue. Apical two thirds of forewing with a wide area dark brown, scattered with iridescent bronze scales, followed distally by irregular patterns of iridescent violet. Cilia gray brown. Hindwing dark brown with white patch on anterior margin; cilia concolorus basally, gray brown medially, white apically.

MALE GENITALIA (WDD 3652).—Uncus partially recurved, rounded apically; gnathos a simple band; harpe simple, costa near apical two thirds slightly expanded, bearing a tight recurved cluster of palmate, multilobed setae on margin; vinculum moderate, ends closely approximate below anellus; anellus ovoid with a median oval depression, bearing two closely approximated, upright, apically acute lateral lobes; aedeagus only slightly expanded basally, vesica armed with one cluster of long, narrow cornuti, one cluster of short, broad cornuti.

FEMALE GENITALIA.—Unknown.

TYPE.—In the British Museum (Natural History).

TYPE LOCALITY.—Bolivia.

HOST PLANT.—Unknown.

DISTRIBUTION.—This species is presently recorded from the humid low highlands of southeastern Peru and an unspecified locality in Bolivia.

ADULT RECORDS.—PERU: Azupisú, Cam. de Pichis (July). BOLIVIA:—No locality (no date).

Rectiostoma ochrobasis is a moth in the family Depressariidae. It was described by W. Donald Duckworth in 1971. It is found in the humid low highlands of south-eastern Peru and Bolivia.

The wingspan is 8–9 mm. The forewings are dark brown, with a pale yellow transverse band from the costa to the dorsum at the basal fourth, parallel to the distal margin of the yellow band extends a dark brown line followed by a broader band of iridescent blue. The apical two thirds of the forewing has a wide area of dark brown, scattered with iridescent bronze scales, followed distally by irregular patterns of iridescent violet. The hindwings are dark brown with a white patch on the anterior margin.