Figure Page 



2-29. Known geographical distribution of the sand fly 



Lutzomyia diabol ica in Texas 73 



2-30. Known geographical distribution of the sand fly 



Lutzomyia anthophora in Texas 80 



2-31. Known geographical distribution of the sand fly 



Lutzomy i a texana in Texas 80 



3-1. Sloodfeeding female sand flies, Lutzomyia 



diabol ica 98 



3-2. Number of adult progeny per parent female of 



Lutzomyia diabol ica reared during the first nine 

 generations of a laboratory colony 101 



3-3. Total number of Lutzomyia diabol ica adults per 



generation in a laboratory colony 102 



3-4. Generation times for generations 1 through 9 and 13 



in a laboratory colony of Lutzomyia diabolica 104 



3-5. Life cycle of the Phlebotomine sand fly 



Lutzomyia diabolica (Hall) 110 



3-6. Survivorship curves for immature Lutzomyia 



diabolica reared at 24°C and 27°C 113 



3-7. Graphic comparison of immature development times 

 for male and female Lutzomyia diabolica reared 

 individually to the adult stage at 24 U C and 27°C 115 



3-8. Graphic comparison of immature development times for 



Lutzomyia diabol ica reared on five diet regimens 118 



3-9. Proportion of diapausing eggs in batches laid 



outdoors by Lutzomyia diabol ica females between 



June and December at Gainesville, Florida 120 



3-10. Duration of the egg stage in outdoor-reared 

 Lutzomyia diabolica according to month of 

 oviposit ion at Gainesville, Florida 121 



3-11. Winter diapause development and spring emergence 

 in 33 Lutzomyia diabol ica egg batches 

 deposited outdoors at Gainesville, Florida, between 

 August and December in 1982 and in 1983 123 



3-12. Adult emergence patterns of Lutzomyia diabolica 

 in a laboratory colony (1st and 13th colony 

 generations) 128 



xi 



