Cryptanura strenua (Cresson, 1865)
Mesostenus strenuus Cresson, 1865: 26 .
Cryptanura strenua (Cresson, 1865) . Assigned by Townes and Townes (1966).
Holotype 3 (IES # 184) in good condition. The original description stated that this species could be the male of M. robustus ( Cryptanura robusta), a suggestion that can now be discounted as both the male of robusta and female of strenua are known. C. strenua has the mesopleuron almost entirely black (vs. extensively pale in C. robusta) and pale mark around propodeal apophysis not reaching hind end of propodeum (vs. reaching in C. robusta).