200 LIST OF DIPTERA. 



rudiment of a branch ; subanal vein joining the anal at some dis- 

 tance from the border. Length of the body 5 — 5j lines ; of the 

 wings 9—10 lines. 



a, b. Para. From Mr. Bates' collection. 



192. Tabanus olivaceiventris. 



Mas. Niger ; thorax tomentosus ; antenna dente longo ; abdomen 

 olivaceum ; ala flavescenti-cinerea. 



Tabanus olivaceiventris, Macq. Dipt. Exot. SuppL 2, 18, 96. 

 Para. 



193. Tabanus caiennensis. 



Niger, fulvo hirtus ; antenna fulvce ; abdomen basi ferrugineum, 

 incisuris Jlavo pilosis ; femora postiea rufa ; alee sub- 

 limpida. 



Tabanus caiennensis, Fabr. Ent. SysL iv. 366, 19 ; Syst. Antl. 98, 

 22. Wied. Dipt. Exot i. 91, 52 ; Auss. Zweifl. i. 178, 101. 



Cayenne, Brazil. 



194. Tabanus theot^enia. 



Niger; abdomen basi sulphureum; aim nigra, summo apice 

 dilutiores. 



Tabanus theotsenia, Wied. Auss. Zweifl. i. 136, 38. 



Brazil. 



195. Tabanus tristis. 



Niger ; abdomen basi flavum ; alee flava, apice infumata. 

 Tabanus tristis, Wied. Auss. Zweifl. i. 164, 81. 

 Brazil. 



196. Tabanus callosus. 



Fcem. Niger ; antennae fulva, abdominis latera testacea ; tibia 

 fulva albo pubescentes, apice nigra ; ala hyalina. 



Tabanus callosus, Macq. Dipt. Exot. Suppl. 3, 11, 91. 



Rio Negro. 



