Pterotopteryx Hannemann, 1959

Byun, Bong-Kyu & Park, Kyu-Tek, 2007, Discovery of two new species of Alucitidae (Lepidoptera) from Vietnam, Zootaxa 1390, pp. 51-57 : 52

Genus Pterotopteryx Hannemann, 1959

Pterotopteryx Hannemann, 1959: 173 . Type species: Pterotopteryx (Alucita) dodecadactyla Hübner , [1813].

Pterotopteryx includes P. dodecadactyla , described by Hübner (1813) from Europe, and five additional species described by Gielis (2003), four of which are known from Russia and one from Tadshikistan. Recently Byun (2006) described P. koreana from Korea.

According to Byun (2006), Pterotopteryx can be characterized as follows: 3rd segment of labial palpus usually shorter than 2nd, rarely as long as 2nd (e.g., nigrifasciata sp. nov.); and all R­veins present in forewing. In the male genitalia, the valva has a broad basal part extending to the middle area; the uncus is undivided apically; the gnathos is acute terminally; and the phallus is nearly straight, with spiniform cornuti in the vesica. In the female genitalia, the lobes of the vaginal plate are broad; the antrum is broad and cup­shaped; the ductus bursae is short and broad, occasionally narrow (e.g., vietana sp. nov.); and the corpus bursae has a small rounded signum, absent in some species (e.g., nigrifasciata sp. nov. and vietana sp. nov.). Zagulyaev (1997) stated that members of Pterotopteryx can be distinguished only by the male genitalia (females of many species are unknown).