In this paper, based on specimens deposited in the Institute of Ecology and Biological Resources (IEBR), taxonomic notes on the genus Euodynerus from northern Vietnam are presented, and keys to species and subspecies are also provided. | TẠP CHÍ SINH HỌC, 2012, 34(4): 427-431 TAXONOMIC NOTES ON THE GENUS EUODYNERUS DALLA TORRE (HYMENOPTERA: VESPIDAE: EUMENINAE) FROM NORTHERN VIETNAM Dang Thi Hoa1, Nguyen Thi Phuong Lien1*, Jun-ichi Kojima2 1 Institute of Ecology and Biological Resources, VAST, *phuonglientit@ 2 Ibaraki University, Japan ABSTRACT: A taxonomic study of the genus Euodynerus Dalla Torre from Northern Vietnam is reported. The following four forms included in three species were recorded: E. dantici violaceipennis Giordani Soika, E. nipanicus nipanicus (von Schulthess), E. nipanicus tonkinensis Giordani Soika and E. trilobus (Fabricius). Of these, E. dantici violaceipennis and E. nipanicus nipanicus were newly recorded for Vietnam. Keys to species and subspecies are presented and records of their distribution in Northern Vietnam are also provided. This is the first result on the taxonomy of the genus in Vietnam, and the distribution records is an important contribution to the study on the distribution pattern of the species in the genus in Asia. Keywords: Vespidae, Eumeninae, Euodynerus, new records, Northern Vietnam. INTRODUCTION The genus Euodynerus Dalla Torre comprises solitary eumenine wasps that mostly nest in preformed borings in wood, but a few burrow in soil, make mud nests, or utilize abandoned nests of mud daubers. The members of this genus are distinguished from those of related genera, such as Anterhynchium de Saussure and Pseudepipona de Saussure by the metanotum with a row of teeth at the posterior margin, and two sharp teeth on the upper part of the propodeum, behind the metanotum. The genus is divided into three subgenera: Euodynerus Dalla Torre, Incolepipona Giordani Soika and Pareuodynerus Blüthgen [3]. More than 100 species of this genus have been recognized worldwide and 15 species are known to occur in Oriental region through unrelated studies on a national or regional basis [8, 3, 5, 6]. In Vietnam, Euodynerus nipanicus tonkinensis Giordani Soika and .
