-45- 



surveyed to determine species diversity and relative abundance of sand 

 flies. Collection methods employed included the following: 



Resting col lections . An extensive search was made at each site 

 for diurnal and nocturnal resting places of adult sand flies. 

 Particular attention was directed to dark protected cavities in rocks, 

 trees, buildings and other man-made structures, as well as in animal 

 burrows, ground nests and brush piles where sand flies might seek 

 shelter. A flashlight was used to enhance visibility. Live specimens 

 were captured with a simple tube aspirator and placed in a 120 ml 

 feeding/rearing chamber (Endris et aj_., 1982). 



Biting col lections . Biting collections (Young, 1979) were made 

 at night, usually between 2100 and 2400 hrs. The collector sat in an 

 open area under an incandescent light or Coleman® lantern and captured 

 sand flies with an aspirator as they attempted to feed. 



Light traps . Battery powered or CDC miniature light traps (Sudia 

 and Chamberlain, 1962) were secured to tree branches about 2 m above 

 the ground at edges of clearings and near human habitations. Care was 

 taken to insure their placement was away from competing light. In 

 some instances they were placed adjacent to or directly over suspected 

 resting sites such as wood or rock piles (Fig. 2-11). 



A New Jersey mechanical light trap (Mulhern, 1942), powered by 

 110-volt house current, was placed in the back yard, adjacent to the 

 dog kennel at the D'Hanis site. The trap will be operated there 2-4 

 nights per week for the next year. 



A Shannon trap (Shannon, 1939; Fig. 2-16), made from white cotton 

 bedsheets, was erected in open areas near human and animal dwellings. 

 This apparatus does not actually trap insects, but the lantern or 



