Olethreutes captiosana ( Falkovitsh, 1960 )

Kim, Jeong-Nam, Bayarsaikhan, Ulziijargal, Lee, Tak-Gi, Cha, Yeong-Bin, Kim, Hanul, Byun, Bong-Kyu & Bae, Yang-Seop, 2022, A new species of Olethreutes Hübner, 1822 (Lepidoptera, Tortricidae, Olethreutinae) from Korea, Zootaxa 5219 (5), pp. 486-492 : 489-490

Olethreutes captiosana ( Falkovitsh, 1960)

( Figs 2 , 5 )

Phiaris captiosana Falkovitsh, 1960 , Entomologicheskoe Obozrenie, 39: 690. TL: Simonovo vill., Amur Region, Russia.

Olethreutes arcuella Issiki (nec Clarke), 1957, Icones Heterocerorum Japonicorum in coloribus naturalibus, 1: 74.

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

Olethreutes captiosanus Falkovitsh : Razowski, 1999, Shilap, Revista de lepidopterología, 27(5): 103.

Diagnosis. This species is similar to O. subtilana (Falkovitsh) in appearance, but can be separated by the three metallic silver markings in the ocellus of the forewing, while O. captiosana has four metallic silver markings on the forewing. In the male genitalia, this species differs from O. subtilana by its sacculus which is slightly projected beyond the middle of the ventral edge, the phallus has three groups of spines on vesica in the male genitalia of O. captiosana , while in O. subtilana the phallus has simple and without cornuti.

Redescription. Male ( Fig. 2 ). Head: Frons with ivory scales; vertex mixed with dark brown scales. Antenna filiform, covered with dark brown scales. Ocellus present. Labial palpus slightly upcurved and covered by ivory scales, the apical segment with tip exposed, erect, mixed with dark brown scales.

Thorax: Patagium with grayish orange scales; tegula grayish orange mixed with grayish brown scales. Forewing length 22–25 mm in males. Forewing broad, forewing elongate-subtriangular, costa slightly curved outwards; apex pointed; termen convexly rounded; brownish orange, the basal area with three metallic silver longitudinal streaks, costal streak oblique slightly inward; second streak is straight, not joined with costa; subbasal fascia with a slightly straight metallic silver cross line; median area reticulated with three eye-like metallic silver markings in the center of dark ovoid plate consisting of irregular dots and lines; preterminal fascia with two metallic silver bands extending slightly inward, upper band shorter than lower one and two short metallic silver bands are present near costa and tornus; cilia ivory and dark brown. Hindwing elongate-ovate, apex rather acute; dark brown, darker in the apical area; cilia ivory and dark brown.

Abdomen: ivory and dark brown.

Male genitalia ( Fig. 5 ). Uncus stout, apex bifurcate, setose. Socius moderately broad, setose. Gnathos partly sclerotized. Tuba analis shorter than uncus, membranous. Tegumen long-trapezoidal. Valva elongate, not folded at middle, more or less flat. Cucullus slightly narrower than sacculus, apex rounded, setose, with spines, slightly projected beyond the middle of the ventral edge. Sacculus strongly widened beyond the middle, convex, angulated on the ventral edge, with a stout spine cluster on the medial surface and along the ventral edge distally. Phallus nearly of the same length as cucullus, sclerotized on the left side, three groups of spines on vesica are present, the central group with few small spines, and two lateral groups with two stout spines that are longer than the spines of the central group.

Female. Not examined.

Material examined (10♂). Korea: 5 ♂, Mt. Hambaek , Taebaek-shi, 13. VI. 1999 (Bae et al.), genitalia slide Nos. INU-11053, INU-11054, INU-11055, INU-11056, INU-11057 ; 1 ♂, Mt. Taebaek , Kongwon, 27. VI. 1996 (Lee et al.), genitalia slide No. INU-11058 ; 1 ♂, Undu-ryeong , Hongcheon-gun, 20.VII. 2000 (Bae et al.), genitalia slide No. INU-11059 ; 2 ♂, Mt. Taebaek , Taebaek-shi, 13. VI. 1999 (Bae et al.), genitalia slide Nos. INU-11060, INU-11061 ; 1 ♂, Temp. Baekdamsa , Mt. Seolaksan, Injeagun, 4. VII. 2002 (Bae et al.), genitalia slide No. INU-11127 .

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

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

Remarks. This species was misidentified as Olethreutes arcuella by Walsingham (1900) from Korea, but has lately been corrected as O. captiosana by later Park(1983).

Figures

FIGURES 1–3. Adults of Olethreutes from Korea 1a. O. oculata sp. nov., male, holotype (INU-11284). 1b. ditto, male, opposite (INU-11278). 2. O. captiosana, male (INU-11054). 3. O. subtilana, male (INU-11290).

FIGURES 4–6. Genitalia of Olethreutes from Korea. 4. O. oculata sp. nov., male, holotype (INU-11284). 5. O. captiosana, male (INU-11054). 6. O. subtilana, male (INU-11290).