Ancylis repandana Kennel, 1901

Ancylis repandana Kennel, 1901 View in CoL

( Figs. 5, 11, 16)

Ancylis repandana Kennel, 1901: 303 View in CoL . TL: Russia ( Amur).

Diagnosis. The species is easily distinguished from other members of the genus by the long forewing length ( 20–25 mm). It is superficially similar to A. geminana (Donovan) but differs in the presence of a deeply emarginated, longitudinal streak at the middle of the cell in the forewing. The female genitalia of A. repandana can be distinguished by the presence of two large, different­sized signa

Re­description. Adult: Wingspan 20–25 mm in both sexes. Forewing with costa arched towards apex; small strigulae developed along the costal margin, with thin white curved line from basal patch to apex, separating dark costal part of wing from light colored dorsal part; apex sharply protruded with small blackish apical spot. Hindwing light grayish brown.

Male genitalia ( Fig. 11): Uncus moderately long, bifid, with sharp apices. Socii broad, with numerous long hairs. Valva well sclerotized, costa rather straight; ventral margin with two projections, one at base and one near middle, apical potion of valva beyond medioventral projection extremely slender, nearly paralell­sided. Aedeagus thick, narrowed terminally, vesica with a bundle of about 100 cornuti.

Female genitalia ( Fig. 16): Papillae anales slipper­shaped, large. Apophyses anteriores thick, long, twice as long as apophyses posteriors; antrum cup­shaped, short. Ductus bursae relatively short, narrow; ductus seminalis originating near junction with corpus bursae. Corpus bursae rounded, large, with two large, different­sized signa.

Material examined: [ Heilongjiang] 1♂, 1♀, Jiagedaqi, Early June 1996 ( SC Yan), Genitalia slide NEFU ENT­0207 , 0209 .

Distribution. China (new record); Korea; Japan; Russia.

Remarks. The biology is little known; adults have been collected from April to June.