This revision of the bee genus Bathanthidium Mavromoustakis, 1953, treats 12 species, with 11 recorded from China, including Bathanthidium fengkaiense Niu Zhu, sp. nov.. Two species are proposed as new combinations in genus Bathanthidium: Anthidium (s. str.) bicolor Wu, 2004, A. (s. str.) monganshanensis Wu, 2004. The two new combinations (B. bicolor, B. monganshanense) are in Bathanthidium (Manthidium), previously considered to include only the type species from Burma and Laos (published records from northeastern India and Malaysia are based on misinterpreted localities). Trachusa (Paraanthidium) concavum (Wu, 1962) and Stelis siamensis Friese, 1925 are synonymized with B. binghami (Friese, 1901). Bathanthidium circinatum Wu, 2004 is transferred to Pseudoanthidium Friese forming the new combination P. (s. str.) circinatum (Wu, 2004). The distribution of each species is given, new distribution sites are marked by asterisk (*) especially. Our results confirm that the genus Bathanthidium has higher species diversity than previously documented and that this diversity is centered in China.
This study is dedicated to the late Dr. John LaSalle, and reviews the world species of Pleurotroppopsis Girault (Hymenoptera: Eulophidae); fourteen species are treated, of which two are newly described: P. dactylispae Cao & Zhu sp. nov. from China and P. peukscutella Cao & Zhu sp. nov. from Malaysia. On the basis of morphological characters, tentative relationships among genera allied to Pleurotroppopsis are discussed. A revised definition of Pleurotroppopsis is presented based on study of type specimens of all species and a critical review of previous studies on the genus. In addition, parsimony analyses were conducted to infer a phylogeny of Pleurotroppopsis species based on a unique data matrix of morphological characters. Keys to genera allied to Pleurotroppopsis and to known species of Pleurotroppopsis are provided.