Tabanus TRiFAsCLi, Mas. 



Ni(/er, thoracis lateribus fulvo imimaculalis, abdomine piceo basi fcrruiji- 

 neo, vitta et set/mentorum mnrgitiibus posticis fidcis, anlennis ferru- 

 gineis basi ful vis, pedibus nigris, tibiis fuhis, alts cinercis basi et ad 

 costam fulvis. 



Body black : head thinly clothed beneath with pale yellow hairs : 

 eyes divided into two distinct regions ; upper region dark red, composed 

 of very large facets, occupying most of the surface ; fore region small, 

 pitchy, composed of very small facets, confined to the sides of the eyes with 

 the exception of a narrow band along the hind bolder : sucker deep black ; 

 palpi yellow, clothed with pale yellow hairs, and towards the tip with black 

 hairs: feelers pale ferruginous ; first and second joints tawny, clothed with 

 short black hairs ; third with a slight protuberance but no horn ; vompomid 

 joint very slightly curved : chest and breast tliinly clothed with shoit 

 tawny hairs ; a dark tawny spot on each side at the base of the wing : ab- 

 domen pitchy, obconical, a little narrower and very much longer than the 

 chest, clothed with a few tawny hairs, ferruginous towards the base, adorned 

 with a bright tawny stripe, which disappears near the base and the tip ; 

 hind borders of the segments tawny : legs black, clothed with short black 

 hairs ; shanks tawny with black tips ; tips of the thighs tawny ; feet tawny 

 at the Inise ; foot-cushions dark tawny ; hind-thighs and fore-feet quite 

 black ; fore-shanks tawny for half the length from the base, black thence 

 to the tips : wings gray, dark tawny at the base and along the fore border; 

 wing-ribs ferruginous ; veins black, ferruginous towards the base ; angle of 

 tip cross-vein slightly obtuse, stump of moderate length ; brand yellowish 

 brown; scales tawny ; poiscrs pitchy. Length of the body 4i lines; of 

 the wings 9 lines. 



Brazil. 



Tabanus litigiosus, Mas et Fern. 



Fcrrugineus, aut fiiivus, fiavo varius, ayitennis fulvis apice piceis. pedibus 

 fulvis, alis fuscis fulvo tnacnlatis, marginibus posticis cincreis. 



Male. Body ferruginous ; head light yellow in front, dotlied with pale 

 vollow hairs bonoatli : eyes very large : upper region pale brassy red, com- 

 posed ol' \orv large facets ; fore region dark red, small, (niifiiUMl to the 



