Olethreutes captiosana (Falkovitsh, 1960)

(Figs 3, 8, 13)

Phiaris captiosana Falkovitsh, 1960: 690 . TL: Simonovo vill., Amur Region, Russia.

Olethreutes arcuella Issiki (nec Clarke), 1957: 74.

Olethreutes captiosana Falkovitsh: Kawabe, 1982: I: 105, II: 170, pl. 24: 4, 284: 6, 291: 10.

Olethreutes captiosanus Falkovitsh: Razowski, 1999: 103.

Diagnosis. This species is very similar in appearance to the other four species: O. arcuella (Clerck), O. oculata Kim, Byun & Bae, O. subtilana (Falkovitsh) and O. palbongensis sp. nov. Kim & Bae, but it can be distinguished by the male genitalia, specifically the phallus, which features three groups of spines on the vesica.

Redescription. Female genitalia (Fig. 13). Papillae anales elongate ovoid, setose. Apophyses posteriores and apophyses anteriores nearly same length. Sterigma broad process, curving dorsally, extending from posterior part of structures surrounding ostium, densely aciculate. Ostium broad, rounded, sclerotized. Ductus bursae membranous, almost two times longer than corpus bursae. Corpus bursae ovate, membranous, with scobinate signum.

Distribution. Korea (Park 1983), Japan (Nasu et al. 2013), China (Hua 2005), Russia (Falkovitsh 1960).

Material examined [Korea] 5 ♂, Mt. Hambaek, Taebaek–shi, GW, 13 VI 1999 (Bae et al.), genitalia slide No. INU-11053, INU-11054, INU-11055, INU-11056, INU-11057; 1 ♂, Mt. Taebaek, GW, 27 VI 1996 (Lee et al.), genitalia slide No. INU-11058; 1 ♂, Undu-ryeong, Hongcheon-gun, GW, 20 VII 2000 (Bae et al.), genitalia slide No. INU-11059 ; 2 ♂, Mt. Taebaek, Taebaek-shi, GW, 13 VI 1999 (Bae et al.), genitalia slide No. INU-11060, INU-11061 ; 1 ♂, Temp. Baekdamsa, Mt. Seolaksan, Injeagun, GW, 4 VII 2002 (Bae et al.), genitalia slide No. INU-11127. (4 ♀). [Korea] 2 ♀, Mahari, Pyungchang, 6 VI 1996 (J. S. Lee), genitalia slide No. INU-11189, INU-11190 ; 1♀, Mt. Odae 26 VI 1980 (K. T. Park), genitalia slide No. INU-11219 ; 1 ♀, Bongmyoung-ri, Chuncheon, 15 VIII 1996 (J. S. Lee & H. K. Lee), genitalia slide No. INU-11120

Host plant. Larvae have been reported to feed on fallen leaves in Japan (Nasu et al. 2013).

Remarks. This species first recorded from Korea by Park (1983). Kim et al. (2022) redescribed the male genitalia and external morphology of this species but made no mention of the female. In this study, we provides a redescription of the female genitalia.