A review of Trypoxylon Latreille, 1796 (Hymenoptera, Crabronidae) of Southwest China with descriptions of two new species

Two new species of the genus Trypoxylon (Hymenoptera: Crabronidae: Crabroninae: Trypoxylini) from Yunnan Province, China: T. aphelothoracicus Fu & Li, sp. nov. and T. ferrugineipes Fu & Li, sp. nov. are described and illustrated. The female of T. infoveatum Li & Li, 2007 is described for the first time. In addition, ten species of Trypoxylon are newly recorded from China: T. buddha Cameron, 1889, T. flavipes Tsuneki, 1979, T. fulvocollare Cameron, 1904, T. gampahae Tsuneki, 1981, T. imayoshii Yasumatsu, 1938, T. kandyianum Tsuneki, 1979, T. khasiae Cameron, 1904, T. nasale Tsuneki, 1979, T. pahangense Tsuneki, 1979, and T. pendleburyi Tsuneki, 1979. An updated key to Trypoxylon of Southwest China is provided.