A.  Stone and Peterson, B. V., ?Chapter 26. Thaumaleidae?, in Manual of Nearctic Diptera, vol. 1, J. F.  McAlpine, Peterson, B. V., Shewell, G. E., Teskey, H. J., Vockeroth, J. R., and Wood, D. M., Eds. Ottawa: Research Branch, Agriculture Canada, 1981, pp. 351-353.