206 LIST OF DIPTEEA. 



219. Tabanus albovaeius. 



Foem. Fusco-ferrugineus ; palpi fusci, basi testacei ; antenna 

 subarcuatce, simplices, vix dilatatce ; thorax albo quadrivitta- 

 tus ; scutellum et pectus albo tomentosa ; abdomen e maculis 

 albis trivittatum ; pedes fulvi, tarsis nigris ; alee subcinerece. 



Male. Brownish ferruginous. Head clothed with white down 

 and tomentum, with a long and very narrow ferruginous callus be- 

 tween the eyes, which are aeneous, nearly contiguous above, and 

 composed of extremely small facets. Palpi brown, testaceous at the 

 base. Antennae brown, slightly curved ; third joint a little dilated, 

 forming a slightly obtuse angle. Thorax with two white stripes on 

 each side. Scutellum and pectus with white tomentum. Abdomen 

 with three rows of white spots, the middle spots triangular ; hind 

 borders of the ventral segments with white tomentum. Legs tawny ; 

 tarsi black. Wings slightly gray ; stigma ferruginous ; veins 

 black ; first branch of the cubital simple, forming an obtuse angle 

 near its base ; subanal vein joining the anal near the border. 

 Length of the body b\ lines ; of the wings 1 line. 



a. Ega, on the Amazon. From Mr. Bates 7 collection. 



220. Tabanus basivitta. 



Fuscus ; antenna? ferruginece, basi fulvce ; pectus cinereum; abdo- 

 men ferrugineum, basi nigro vittatum ; pedes ferruginei, tarsis 

 nigris ; aim cinerem, basi costagne fuscis. 



Tabanus basivitta, Walk. Zool. viii. Append, lxviii. 

 a. Para. From Mr. Bates' collection. 



221. Tabanus deseetus. 



Cinereus ; thoracis latera fulva ; pectus canum ; abdomen fuscum, 

 maculis trigonis fulvis trivittatum, lateribus ferrugineis, 

 ventre fulvo ; pedes fulvi; ala cinerea. 



Tabanus desertus, Walk. Zool. viii. Append, lxix. 

 Para. From Mr. Bates' collection. 



