Table Page 



3-7. Age-specific life table for laboratory-reared 

 Lutzomyia diabolica based on observations of 

 several generations 135 



4-1. Infection rates in laboratory-reared Lutzomyia 

 diabol ica and Lu. shannoni sand flies fed on 

 hamsters with histiocytomas due to Leishmania 

 mexicana (strain WR-411) 169 



4-2. Distribution of Leishmania mexicana (strain WR-411) 

 in the alimentary tract of Lutzomyia diabolica 

 dissected post mortem after feeding on infected 

 hamsters 172 



4-3. Distribution of Leishmania mexicana (strain WR-411) 

 in the alimentary tract of Lutzomyia shannoni 

 dissected post mortem after feeding on infected 

 hamsters 173 



4-4. Description and location of Leishmania mexicana 



(strain WR-411) in the alimentary tract of laboratory- 



reared Lutzomyia diabolica 12 hrs to 8+ days after 



an infecting blood meal 174 



4-5. Distribution of Leishmania mexicana amazonensis 



(strain untyped) in the alimentary tract of Lutzomyia 



diabolica dissected post mortem after feeding 



on histiocytomas of infected hamsters 185 



4-6. Distribution of Leishmania brazil iensis guyanensis 



(strain MH0M/SR/80/CUMC 1) in the alimentary tract of 



Lutzomyia diabol ica dissected post mortem after 



feeding on a histiocytoma on the tail of a white 



mouse 186 



4-7. Results of transmission trials of Leishmania 



mexicana (strain WR-411) by bites of laboratory- 



reared Lutzomyia diabolica 196 



4-8. Results of postfeeding dissections of laboratory- 

 reared Lutzomyia diabolica sand flies involved in 

 experimental transmissions of Leishmania mexicana 

 (strain WR-411) to Syrian hamsters 200 



4-9. Results of transmission trials of Leishmania 



mexicana (strain WR-411) by bites of laboratory- 

 reared Lutzomy i a shannoni 201 



4-10. Results of postfeeding dissections of laboratory- 

 reared Lutzomyia shannoni sand flies involved 

 in experimental transmissions of Leishmania mexicana 

 (strain WR-411) to Syrian hamsters 203 



VT 11 



