Dichelopa dorsata Clarke 1986

Dichelopa dorsata

Alar expanse 18 mm.

Labial palpus dark grayish brown, slightly paler on inner surface. Antenna dark grayish brown. Head dark grayish brown. Thorax fuscous; tegula dark grayish brown. Forewing ground color grayish brown overlain by grayish ocherous scales; on dorsum a large, conspicuous blackish brown blotch, the inner edge of which is outwardly oblique; this blackish brown blotch fades outwardly and merges with ground color; on middle of costa an ill-defined quadrate fuscous spot; from costa, at vein 10, a slender, outwardly oblique fuscous line extends to vein 7, then continues to termen slightly beyond tornus; cilia mixed grayish ocherous and grayish brown. Hindwing light dusky drab; cilia concolorous. Foreleg ocherous white on inner surface of femur and tibia, grayish drab outwardly; tarsal segments fuscous on outer surface; midleg similar except all outer surfaces fuscous; hindleg ocherous white with very slight grayish suffusion. Abdomen grayish fuscous dorsally, ocherous white ventrally.

Female genitalia slide USNM 24386. Ostium transverse, oval. Sterigma a very narrow band. Inception of ductus seminalis dorsolateral, well before ostium. Ductus bursae very short, membranous. Bursa copulatrix membranous, four times the length of ductus bursae. Signum absent.

HOLOTYPE.—USNM 100759.

TYPE-LOCALITY.—Hiva Oa, Mt. Feani, 3400 ft (1036 m).

DISTRIBUTION.—Hiva Oa.

FOOD PLANT.—Unknown.

Described from the unique holotype. The dark dorsal blotch of forewing readily distinguishes dorsata from any other described species of this genus, but judging from the female genitalia dorsata is probably closely related to orthiostyla.

Dichelopa dorsata is a species of moth of the family Tortricidae. It is found on the Marquesas Archipelago in French Polynesia.