1.
Amarante STP. On the systematics of Trypoxylon scrobiferum Richards and T. anapaike Amarante with the recognition of a new species group in the subgenus Trypoxylon (Hymenoptera: Crabronidae: Trypoxylini) . Pap. Avulsos Zool. 2005;45(9):91-101. doi:10.1590/S0031-10492005000900001