LIST OF DIPTERA. 185 



yellow, clothed with short black hairs ; sucker piceous : feelers hav- 

 ing the first and second joints tawny and beset with black hairs ; 

 third joint ferruginous, curved, black towards the tip, furnished with 

 a few short black hairs, and having a black angle at the base : chest 

 tawny, perhaps with some stripes, which are obliterated: breast 

 hoaiy, clothed with tawny hairs : abdomen dark brown, clothed with 

 pale tawny hairs, and having a broad tawny stripe on each side ; 

 the hind borders and the sides of the segments, and the whole of the 

 under-side, are also tawny : legs piceous ; middle shanks and tips of 

 middle thighs tawny ; fore shanks towards the base, tips of four 

 hinder shanks, and four hinder feet, dark ferruginous ; hind shanks 

 and tips of hind thighs pale ferruginous : wings gray, somewhat 

 brown along the fore borders ; veins piceous, very, slightly clouded 

 with brown ; brands yellowish brown, long and narrow ; poisers fer- 

 ruginous, with bright pale yellow knobs. Length of the body 5 lines ; 

 of the wings 10 lines. 



a. Brazil. 



Tabanus completus, n. s., fem. Ferrugineus, capite nigro, thorace pi- 

 ceo trivittalo, abdomine fulvo fasciato maculisque fulvis quadri- 

 vittato, pedibus ferrugineis tibiis tarsisque fulvis, alis subcinereis 

 venis transversis piceo nebulosis. 



Head black, clothed beneath with white hairs : eyes green, with 

 purple bands : palpi pale yellow; sucker black : feelers ferruginous ; 

 third joint widened into an angle near the base, whence to the tip it 

 is black : chest and breast ferruginous, the former with three piceous 

 stripes, the latter thinly clothed with white hairs : abdomen ferrugi- 

 nous, adorned with four rows of nearly triangular tawny spots, that 

 form irregular bands and are confluent at the tip ; hind borders of 

 the segments tawny, fringed with yellow hairs : legs ferruginous ; 

 shanks and feet pale tawny, with piceous tips : wings with a very 

 slight gray tinge : veins black ; cross-veins clouded with piceous ; 

 brands tawny, piceous at the base ; poisers tawny. Length of the 

 body 4^ lines ; of the wings 9 lines. 

 a. Isle St. Thomas. From Mr. Gosse's collection. 



Tabanus circumdatus, n. s., fem. Fuscus, capite cinereo-fulw sub- 

 tus cano, thoracis vitlis tribus pectoreque canis, lateribus fulvis, 

 abdomine ferrugineo, fasciis fulvis maculisque basi et apice fus- 

 cis, pedibus ferrugineis, femoribus cinereis, alis subcinereis. 



Head dull grayish tawny, with a large oblanceolate shining pi- 

 ceous spot in front, beyond this there is a ferruginous tubercle on 

 which the feelers are seated ; under-side of the head hoary, clothed 

 with long white hairs : palpi and lancets tawny, the former clothed 



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