Taxonomic notes on species of the genus Euaspis Gerstacker, 1858 (Hymenoptera: Megachilidae) from Vietnam are presented. Three species of the genus are reported: E. aequicarinata Pasteels is recorded in the central highlands Vietnam (Kon Tum Province) beside the previous record of this species in the northwest (Hoa Binh Province). | TAP CHI SINH notes HOC on 2016, 515-520 Taxonomic the 38(4): genus Euaspis DOI: TAXONOMIC NOTES ON THE GENUS Euaspis Gerstäcker (Hymenoptera: Apoidea: Megachilidae) FROM VIETNAM Tran Thi Ngat*, Khuat Dang Long, Nguyen Thi Phuong Lien Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology ABSTRACT: Taxonomic notes on species of the genus Euaspis Gerstäcker, 1858 (Hymenoptera: Megachilidae) from Vietnam are presented. Three species of the genus are reported: E. aequicarinata Pasteels is recorded in the central highlands Vietnam (Kon Tum Province) beside the previous record of this species in the northwest (Hoa Binh Province); E. polynesia Vachal is widely recorded throughout Vietnam; the taxonomy of Vietnamese Euaspis basalis (Ritsema, 1874) is a misidentification, and it is indeed Euaspis diversicarinata Pasteels, 1980 and is a new record from Vietnam. A key to the females of Vietnamese species of Euaspis Gerstäcker and a redescription of the female of E. diversicarinata are given with illustrations. Keywords: Apoidea, Megachilidae, Euaspis, new record, Vietnam. Citation: Tran Thi Ngat, Khuat Dang Long, Nguyen Thi Phuong Lien, 2016. Taxonomic notes on the genus Euaspis Gerstäcker (Hymenoptera: Apoidea: Megachilidae) from Vietnam. Tap chi Sinh hoc, 38(4): 515-520. DOI: . *Corresponding author: tranthingat1012@ Received 30 November 2016, accepted 26 December 2016 INTRODUCTION Wild bees are diverse and important in nature. Currently, however, diversity and their conservation status of bees from Vietnam are poorly studied (Le Xuan Hue, 2010; Khuat Dang Long et al., 2004; Khuat Dang Long et al., 2012), and megachiline bees are no an exception. Genus Euaspis Gerstäcker, 1858 comprises 12 described species worldwide. Of them, two species are distributed in Africa and ten species are found in Asia (Ascher & Pickering, 2016; Michener, 2007). This genus is widespread .