•53 



439- BoMRYLius I'YGM/F.us Fabr. — Length of body, including pro- 

 boscis, 5 lines ; excluding do., 3 lines ; expansion of wings 9 lines. 

 Taken with the preceding. 



Body black, hairy. Hair below the eyes black ; eyes meeting at the 

 vertex ; behind the eyes the hairs are gray ; those on the thorax are tawny 

 or reddish with a white tuft on each side at the anterior and posterior 

 margin ; the wings are longitudinally dusky at the anterior margin ; more 

 than the posterior half is hyaline, with several scattered black dots, the 

 interior ones being the largest ; the legs are testaceous, bat black at the 

 tip ; the abdomen is covered by reddish hairs with dark ones intermingled; 

 those at the anus are whitish. 



[Taken in various localities throughout N. America.] 



FAMILY TADANID/E. 



440. Tap-anus affini.s Kirby. — Length of body 7^ lines. Taken 

 with the preceding. 



[314.J Body black with hoary down. Proboscis, palpi, and base of 

 the antennse obscurely, all red ; down on the trunk very thin, mixed with 

 a few black hairs ; tubercles before the wings, winglets and knob of the 

 poisers, pale testaceous ; legs black with the four posterior tibiae rufous ; 

 wings embrowned, with darker nervures ; three first segments of the abdo- 

 men rufous, each with a black dorsal spot ; margin of the segments pale 

 with a whitish fringe ; the fourth segment has a pair of round, red, dorsal 

 spots. 



Variety B. Antennae all black. 



441. Tabanus zonalis Kirby. — Length of body 7j^ lines. Taken 

 with the preceding. 



Body black, with a few hairs of the same color, especially at the sides 

 of the trunk. Antennae reddish at the base ; sheath of the proboscis, 

 and palpi, black ; haustellum testaceous ; breast whitish from inconspicu- 

 ous down ; tubercles before the wings subferruginous ; wings subtestaceous 

 with some of the nervures black : knob of the poisers reddish ; thighs 

 black, reddish at the tip ; tibiae, and tarsi, except the anterior pair, which 

 are black, as well as the apex of the anterior tibiae, red ; abdominal seg- 

 ments above and below margined with white decumbent down and fringe. 



