Chinese species of Carinostigmus Tsuneki (Hymenoptera, Crabronidae), including three new species and a new record to China
Three new species of Carinostigmus Tsuneki from the Oriental Region of China are described: Carinostigmus frontirugatus Bashir & Ma, sp. nov., C. latidentatus Bashir & Ma, sp. nov., and C. vesulcatus Bashir & Ma, sp. nov. In addition, ten species are reported, of which Carinostigmus palawanensis (Tsuneki) is recorded in China for the first time. A key to known and new species of the genus Carinostigmus Tsuneki from China is provided.