60 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 121 



Table 2. — Predators and parasites of stratiomyid larvae in America north of Mexico 



> Taxonomlc status as given by B. D. Burks, U.S. National Museum. 

 2 Taxonomic status as given by L. H. WaliJely, U.S. National Museum. 



Table 3. — Ecological and morphological specializations in stratiomyid larvae 



