Key to the Oriental species of Passaloecus Shuckard (Hymenoptera: Crabronidae), with descriptions of four new species from China

摘要

A key to the Oriental species of Passaloecus Shuckard (Crabronidae: Pemphredoninae: Pemphredonini) is provided. Four new species are described and illustrated: P. columnaris and P. labrinigratus from Yunnan, China, P. multituberculatus from Zheji-ang,China, and/! petiolatus from Tibet, China. In addition, four Oriental species are reported, of which P. clypealis Faester and P. monilicornis Dahlbom are recorded from the Oriental Region for the first time.