1979 ] 
Rubink & Evans — Epyris eriogoni 
317 
Fig. 3. Blastinus sp. larval prey of Epyris eriogoni showing egg on the first abdominal 
segment. 
(■Gonocephalum seriatum (Boisduval)) Williams (1919) found to be 
used by E. extraneus (T. J. Spilman, pers. comm.). 
Four female and five male wasps were returned to the laboratory in 
an attempt to further study their biology. The males survived for 
several days and the females for a period of two months on a 5% 
honey-water diet. Captive females would not accept Tenebrio moli- 
tor L. larvae of the appropriate size class as prey. Although they did 
appear to be searching for prey in the available cracks and crevices in 
the rearing chamber, no interest in mealworms was apparent. 
Discussion 
Based on this report and that of Williams (1919), the habits of 
Epyris are seen to parallel remarkably those of some of the primitive 
fossorial wasps. Certain Pompilidae, for example, commonly build 
cells from the sides of digger wasp burrows (e.g., Evans, 1974) and 
some Sphecidae of genera such as Chlorion regularly nest from 
pre-existing burrows (e.g., Peckham and Kurczewski, 1978). Man- 
