Scardia amurensis Zagulajev, 1965

Osada, Yohei, Sakai, Makoto & Hirowatari, Toshiya, 2016, A review of the Japanese species of the genus Scardia Treitschke (Lepidoptera, Tineidae), with description of a new species, Zootaxa 4079 (3) : 368-370

Scardia amurensis Zagulajev, 1965

[Japanese name: Ohirozukoga]

Scardia amurensis Zagulajev, 1965 , 411, figs. 1–2. [Type locality: Spassk-Dalniy, Primorsk Terr., USSR]; 1973, 99–100, figs. 74–77; Moriuti, 1982, I: 163, II: pl. 2: 12 (partim); Robinson, 1986, 143, figs. 35–36, 153, figs. 98, 167, figs. 154; Gaedike, 2000, 360, 373 (partim); Sohn, 2007, 13–14, figs. 5; Sakai, 2013, 22, pl. 3-11-1; 118, Fig. Tin1. c (partim); Hori & Sakurai, 2015: 218, fig. 1717.

Diagnosis ( Figs. 1B , 2B , 5 , 6 ). For morphological differences between S. fusca sp. nov. and S. amurensis , see ‘Diagnosis’ for S. fusca sp. nov..

Redescription. Length of forewing 14.0–18.0mm; forewing expanse 26.0–36.7mm. Head, thorax and abdomen resembling those of S. fusca sp. nov., but different as follows: Vertex and face roughly clothed with yellowish white long hairs.

Wing markings ( Fig. 1B ): Forewing and hindwing resembling those of S. fusca sp. nov., but different as follows: Forewing upperside bordered with yellowish white along dorsum and termen. Hindwing upperside pale brownish white.

Wing venation ( Fig. 2B ): Wing venation resembling that of S. fusca sp. nov.

Male genitalia ( Fig. 5 ): Male genitalia resembling those of S. fusca sp. nov., but different as follows: Width of base of uncus similar to length of uncus. Gnathos and subscaphium absent. Vinculum broad; saccus broad with rounded apex. Valva 1/2 as wide as height of ring, valval apodeme 1/4 times as long as length of valva. Carina of phallus projecting.

Female genitalia ( Fig. 6 ): Female genitalia resembling those of S. fusca sp. nov., but different as follows. Genital plate with a pair of rounded quadrate lamellae; apical 1/4 of digitiform process extending beyond posterior margin of genital plate.

Distribution. Japan: Hokkaido, Honshu (Aomori, Iwate, Nagano and Nara Prefs.), Russia (Amur, Primorsk).

Biology. The larvae feed on Fomes fomentarius [Japanese name: Tsuriganetake] and Laricifomes officinalis [Japanese name: Eburiko] ( Sohn 2007; Sakai 2013).

Specimens examined. [Hokkaido] 1♂, Nukabira, Kamishihoro-cho, 29. vii. 1971, Host: Laricifomes officinalis, H. Ono leg.; 1♂ 1♀, Aizankei, Kamikawa-cho, 15. viii. 1996, M. Sakai leg.; 2♀, same locality and collector 28. vi. 1997; 2♂ 1♀, Mitsumata, Kamishihoro-cho, 3. vii. 1997, M. Sakai leg.; 2♂ 1♀, Shikaribetsulaleside, Shikaoi-cho, 23. viii. 1995, M. Sakai leg.; same locality and collector, 13. viii. 1996. [Honshu] (Aomori Pref.) 1♂, Sukayu, Towada-cho, 22. viii. 1996, M. Sakai leg.; (Iwate Pref.) 1♂ 1♀, Nakamura, Isawa-cho, 21. v. 1997, M. Sakai leg.; (Nagano Pref.) 1♂, Kayanotaira, Kijimadaira-mura, 13. viii. 1999, Y. Miyamoto leg.; (Nara Pref.) 1♂, Odaigahara, Kamikitamaya-mura, 6, viii, 2005, GH. Huang, T. Hirowatari. K. Tateiwa, BW. Lee and K. Ikeuchi leg. [Shikoku] (Ehime Pref.) 1♂ 1♀, Saragamine, Kumakogen-cho, 8. v. 1954, Host: Fomes fomentarius, S. Hisamatsu leg.; 1♂, Odamiyama, Oda-machi, 7. v. 1 986, Host: Fomes fomentarius, S. Hisamatsu leg.

Sampling localities of Scardia species are shown in Fig. 7 .

Remarks. The male genitalia of Scardia amurensis and S. fusca sp. nov. are similar to those of S. boletella and S. caucasia , in lateral view, but the uncal lobes are slenderer, and not stout as in S. boletella and S. caucasia . In addition, in the two Japanese species, the digitiform processes of the female are slenderer than those of other Scardia species.

Figures

FIGURE 1. Adults of Scardia species from Japan. A: S. fusca sp. nov., holotype ♂. B: S. amurensis ♂.

FIGURE 2. wing venations of Scardia species. A: S. fusca sp. nov., ♂. B: S. amurensis ♂.

FIGURE 5. Male genitalia of S. amurensis. A: whole genitalia except aedeagus, lateral view. B: Uncus, dorsal view. C: Genitalia except valva, ventral view. D: Valva, inner view. E: Anellus and juxta, lateral view. F: Aedeagus, lateral view. G: Ditto, dorsal view.

FIGURE 6. Female genitalia of S. amurensis. A: whole genitalia, lateral view. B: Terminalia, ventral view. C: Genital plate, ventral view.

FIGURE 7. Collection localities of Scardia species in Japan.