Taxonomic study of tribe Eucosmini (Lepidoptera, Tortricidae, Olethreutinae) in the Northern part of Vietnam

Abstract

The tribe Eucosmini is the second largest tribe of Olethreutinae with more than 1,000 species in over 125 genera, distributed mostly in the Holarctic region, and over half of the known species occur in the Nearctic region (Horak and Brown, 1991b). Eucosmini can be separated from other tribes by a combination of the following characters proposed by Kuznetsov and Stekolnikov (1984): 1) one‐branched protuberance of the valve; 2) gnathos and uncus is very weakened or reduced.In Vietnam, in the period 1977–1978 and 1997–1998, National Institute of Plant Protection (NIPP) recorded only seven Tortricidae species. Recently, Kuznetzov (2001) recorded four species in the Southern part of Vietnam: Eucosmogastra aeolantha (Meyrick, 1914), Noduliferola pleurogramma (Clarke, 1976), N. atriplaga (Clarke, 1976), N. phaeostropha (Clarke, 1976). Razowski recorded 14 species of 10 genera of Eucosmini (2009).In this study, we are briefly reviewed of tribe Eucosmini in the Northern part of Vietnam. As the result of this study, a total of 19 Eucosmini species of 13 genera are recognized. Of them, 17 species are reported for the first time from Vietnam such as: Coenobiodes acceptana Kuznetzov, 1973; Epiblema foenella (Linnaeus, 1785); Lepteucosma ceriodes (Meyrick, 1909), etc. The materials identification based on the collection of University of Incheon, which has collected from 2004–2009 in the Northern part of Vietnam by Vietnamese and Korean entomologist.