148 LIST OF DIPTERA. 



Tabanus catenates, n. s., fem. Rufus, canescens, thorace cano 

 quinquevittato, abdomine maculis dorsalibus trigonis albis fasci- 

 isque albidis, antennis pedibusque rufis, alis limpidis, basi cos- 

 taque fulvis. 



Body red, covered with a slight hoary bloom : head beneath 

 and the sides of the breast clothed with white hairs : mouth black : 

 feelers and palpi pale red ; a very slight horn on the third joint of 

 the former: chest with five hoary stripes: abdomen with a white 

 triangular spot on the hind border of each segment of the back ; 

 hind borders of the segments whitish : legs red ; knees tawny ; feet 

 almost black: wings colourless, tawny at the base and along the 

 fore borders ; veins piceous, bordered with tawny colour ; poisers 

 tawny. Length of the body 11 lines; of the wings 22 lines. 



a. Massachusetts. From Prof. Sheppard's collection. 



Tabanus opulentus, n. s., mas. Atra, thorace rubiginoso, antennis 

 pedibusque nigris, alis cinereis basi ferrugineis. 



Head black, and clothed with short black hairs beneath : eyes 

 bronze, very large : mouth and feelers black : chest of a very deep 

 rich dark red colour, downy : breast black, clothed with short black 

 hairs : abdomen deep velvet-like black : legs black, pubescent : 

 wings gray, dark ferruginous at the base and on the fore borders ; 

 wing-ribs and veins piceous ; poisers black. Length of the body 9 

 lines ; of the wings 17 lines. 

 a ? From Mr. Children's collection. 



Tabanus formosus, n. s., mas. Ferrugineus, thoracis disco abdomi- 

 nisque vitta nigris, antennis ferrugineis, pedidus fulvis, alis 

 rufo-fuscis. 



Head tawny, and clothed beneath with hairs of the same 

 colour : eyes brassy : mouth black : feelers ferruginous ; third joint 

 curved ; horn on its base very small : chest grayish black, clothed 

 with short down of the same colour; sides and breast ferruginous : 

 abdomen ferruginous with a broad black stripe which is interrupted 

 on the hind border of each segment, and occupies the whole of the 

 three last segments ; there are also three indistinct rows of pale yel- 

 low spots on the hind borders of the segments : legs tawny ; "feet 

 ferruginous : wings reddish brown, darker at the base and the fore 

 borders, and along the cross-veins ; wing-ribs and veins piceous ; 

 poisers tawny. Length of the body 10 lines ; of the wings 18 

 lines. 



? From Mr. Children's collection. 



