Abstract

The little-known bee genusBathanthidiumMavromoustakis, 1953 of the family Megachilidae is reported for the first time from Vietnam. A new species,Bathanthidium(Bathanthidium s. str.) paco Tran & Nguyen,sp. nov.from Hoa Binh province is described and illustrated. A nest of the new species is reported from a wooden house. An updated identification key to all known species of the subgenus Bathanthidium s. str. is also provided.

Highlights

  • Bathanthidium is a small genus of anthidiine bees occurring in eastern Asia (Michener 2007; Ascher and Pickering 2021)

  • Bathanthidium has a primarily Indomalayan distribution with almost all the described species occuring in this biogeographic realm, the majority having been reported from southern China

  • Very little is known of the biology of Bathanthidium

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Summary

Introduction

Bathanthidium is a small genus of anthidiine bees occurring in eastern Asia (Michener 2007; Ascher and Pickering 2021). It is an uncommonly collected genus with most species known from a small number of specimens and some species lack associated. Ngat Thi Tran et al / Journal of Hymenoptera Research 88: 51–60 (2021). China is considered the distribution center of the genus because almost all its species occur in this country (Niu et al 2019)

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