[1]
E. E. Grissell, M. T. Sanford, and T. R. Fasulo, “Large Carpenter Bees, Xylocopa spp. (Insecta: Hymenoptera: Apidae: Xylocopinae): EENY-100/IN257, 7/1999”, EDIS, vol. 2002, no. 6, Oct. 2002.