Morophagoides aquilonis, Osada, Yohei, Sakai, Makoto & Hirowatari, Toshiya, 2015

Osada, Yohei, Sakai, Makoto & Hirowatari, Toshiya, 2015, A revision of the genus Morophagoides Petersen (Lepidoptera, Tineidae) from Japan, Zootaxa 3973 (2), pp. 351-368 : 363

Morophagoides aquilonis sp. nov.

[Japanese name: Miyama-shiitake-ohirozukoga] Figs. 1 G, 2G, 9A–H

Diagnosis. In the male genitalia, the uncal lobes are round, the apex of the uncus is angularly divergent, the inner surface of the valva is almost covered with membrane and the valva is ventrally concave. In the female genitalia, the lateral margin of the ostium bursae is slightly concave, the concavity of the posterior margin of the ostium bursae is about 3/4 as long as the ostium bursae, the antrum is stout and about 1/2 as long as the apophysis anterioris.

Description. Length of forewing 8.3–9.9mm; forewing expanse 16.9–17.9mm

Wing ( Figs 1 G, 2G): Resembling M. moriutii .

Male genitalia ( Figs 9 A–F): Uncal lobes round; apex of uncus angularly divergent. Valva with concave ventral lobe; inner surface of valva with almost membranous. Phallus almost straight, about 13 times as long as broad in middle.

Female genitalia ( Figs 9 G–H): Concavity of posterior margin of ostium bursae about 3/4 as long as ostium bursae. Lateral margin of ostium bursae slightly concave. Antrum stout and about 3/4 as long as apophysis anterioris.

Distribution. JAPAN: Honshu (Iwate, Miyagi Nagano, Yamanashi, Shizuoka, Toyama and Hiroshima).

Etymology. The name aquilonis , the genitive of aquilo, “north wind” in Latin, and hence associated with cold, refers to the high altitude Tohoku and Chubu distribution of the new species.

Specimen examined. HOLOTYPE ♂, [Honshu] (Shizuoka Pref.) Hatanagi, Aoi-ku, Shizuoka-shi, 19. vii. 1969, S. Moriuti leg, deposited in Entomological Laboratory, Osaka Prefecture University (ELOUP). PARATYPES [Honshu] (Iwate Pref.) 2♀Nakanuma, Iwasa-cho, 21. v. 1997, M. Sakai leg. (Miyagi) 2♂, Kurikoma-kogen, Kurihara-shi, 19. v. 1997, M.Sakai, leg. 1♀, Toogatta, Zao-cho, 14. Viii. 1967; 1♀, same locality, 4. Ix. 1971. (Nagano Pref.) 1♂, Tobira-kosen, Matsumoto-shi, 24. viii. 1971, F. Komai leg. 1♀, Kisofukushima-machi, 1. viii. 1953, A. Mutuura leg. (Yamanashi Pref.) 1♂ 1♀, Hirogawara, Minami-arupusu-shi, 30. Vii. 1996, M. Sakai leg. (Toyama Pref.) 1♀, Yamazaki, Asahi-cho, 23. viii. 2009, K. Kawahata leg. (Hiroshima Pref.) 1♂, Mirasaka, Miyoshi-shi, 11. v. 1966, F. Kobayashi leg.

Remarks. The wing markings and wing shape of this species are very similar to those of other Morophagoides species. Further examination is required to discriminate the species by appearance. This species is found at high altitudes in Honshu. The larval biology is unknown, and it has not been reported that shiitake mushrooms are injured by this species. In Hiroshima Pref., this species was found from a shiitake mushroom bed log, so that it is possible that this species may be or become a pest. The valva of the male is ventrally concave as in M. ussuriensis , a condition which is not seen in other species. In addition, we found that this species occurs in Hiroshima Pref.. The occurrence at a long distance from Tohoku and Chubu suggests that it may have been distributed by the transportation of bed logs.

Figures

FIGURE 1. Adults of Morophagoides species. A: M. moriutii. B: M. breviculus sp. nov., Holotype ♂. C: M. occidentalis (Reprinted from Osada et al. 2014). D: M. meridianus. E: M. robinsoni sp. nov., Holotype ♂. F: M. ussuriensis (Reprinted from Osada et al. 2013). G: M. aquilonis sp. nov., Holotype ♂. H: M. yakuensis sp. nov., Holotype ♀.

FIGURE 9. Male and female genitalia of M. aquilonis sp. nov.. A: Male genitalia except phallus, lateral view. B: Ditto, ventral view. C: Ditto, dorsal view. D: Valva, internal view. E: Phallus, lateral view. F: Ditto, dorsal view. G: Female genitalia, lateral view. H: Ditto, ventral view.