k6 



sufficient for larval development, but the addition of CSMA produced a 

 lighter textured medium with increased moisture-holding capacity. In 

 the growth chamber, larval development required 6 to 7 days and pupation 

 another 5 to 6 days. Adults were maintained on cane sugar, fish meal, 

 and nasogastric mix as for Ophyra aenesaens. 



Fannia ocaziovZavis (L.) -- the little house fly. Fannza was briefly 

 colonized for a series of experiments. Females would readily oviposit 

 on the surface of fish meal that was mixed with enough water to make a 

 semi liquid paste. This mixture was preferred after it aged in the growth 

 chamber for 2k hr. The surface of the fish meal, which becomes crusty, 

 could be left in place as the larvae developed, or inverted with the 

 adhering eggs onto a fresh cup of the fish meal paste. Eggs set weekly 

 in 120-ml cups of medium provided an ample number of flies. At 29-^ C, 

 the larval and pupal stages both required ca. 7 days. Adults were 

 maintained on dry fish meal and cane sugar cubes. 



Saraophaga vohusta (Aldrich) — the flesh fly. While flies were 

 being reared on fish meal in the growth chamber, sarcophaged flies, 

 along with other dipteran and coleopteran species, began appearing 

 inside the growth chamber. This activity ceased when the chamber's 

 exhaust pipe was covered with a screen. These sarcophagid flies are 

 also found in poultry manure, so attempts were made to colonize them. 



Six females of different sizes were captured and screened inside 

 360-ml plastic cups with 180 ml of very moist fish meal and placed in 

 the growth chamber. After females died, they were pinned and labeled 

 for later comparison with their progeny. Third-instar larvae began 

 migrating inside the upper halves of the cups 3 days after the females 

 were screened in. After 2 days of migrating, pupation occurred, and 



