-43- 



and is in a typical suburban neighborhood on the northwest limits of 

 San Antonio. About three blocks south of the residence are some open 

 fields, heavily overgrown with weeds and small shrubs. An equal 

 distance to the north is a small creek basin lined with a variety of 

 large shade trees and shrubs. 



Site H . Kelly Residence, San Antonio, Bexar County, Texas (23 and 

 30 September, 1983; Fig. 2-15). Similar to site G, this site is in a 

 suburban neighborhood in southeast San Antonio. Three large pecan 

 trees shade the backyard. Adjoining the property to the southeast is 

 a large vacant lot, overgrown with tall weeds. 



San Antonio climate is about the same as that of Medina County 

 (US Department of Commerce, 1982b) with hot humid summers and 

 pleasantly mild, dry winters. Average annual precipitation is 

 74.6 cm. Average daily maximum and minimum temperatures during September 

 1983 were 32°C and 20°C, respectively, with an overall mean of 26°C. 

 Precipitation during September, 1983, measured 13 cm (US Department 

 of Commerce, 1983a). 



Materials and Methods 



Determination of Sand Fly Fauna 



Several useful field methods for sampling sand flies have been 

 used with varying degrees of success and are reviewed by Young (1979) 

 and Kil 1 ick-Kendrick (1981a). The diversity of potential sand fly 

 habitats at each study site dictated the selection of methods that 

 would sample the broadest cross section. As far as practicable, all 

 representative habitats within a 200 m radius of each site were 



