174 LIST OF DIPTERA. 



breast hoary, more thickly clothed with white hairs : abdomen dark 

 brown, clothed with yellow hairs, especially along the hind borders 

 of the segments, which are tawny : legs black ; trochanters ferrugi- 

 nous ; knees yellow ; shanks tawny beneath and at the base : wings 

 colourless; veins tawny, piceous towards the tips; poisers tawny, 

 their knobs brown at the base. Fern. — Legs tawny ; thighs at the 

 base and hips black ; four hinder thighs piceous till near the tips ; 

 feet (except the base) and tips of shanks piceous ; fore feet and tips 

 of fore shanks black : poisers tawny, with ferruginous knobs. Length 

 of the body 5 lines ; of the wings 9 lines. 



a. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 

 G. Barnston, Esq. 



Tabanus gracilis, Wied. Auss. Zweif. i. 156, 71. 



a. Nova Scotia. From Lieut. Redman's collection. 



b. Nova Scotia. 



Tabanus marginalis, Fabr. Syst. Anil. 99, 31. Wied. Dipt. Exot. 



i. 80, 34. Auss. Zweif. i. 166, 84. 

 a. Nova Scotia. From Lieut. Redman's collection. 



Tabanus carbonarius, Meig. Dipt. i. 33, 2. 



a. Tunis. From Mr. Fraser's collection. 



b. France ? 



Tabanus lugubris, Macq. Dipt. Exot. i. 145, 48. 

 a. North America ? 



Tabanus transiens, n. s., mas. Piceus, capite abdomineque nigris, 



pedibus piceis, alis ferrugineis. 



Allied to T. morio and to T. carbonarius. Head black, clothed 

 behind with tawny hairs and beneath with brown hairs : eyes, palpi 

 and sucker black : feelers dark piceous ; first and second joints 

 clothed with black hairs ; third joint long, curved, beset at the tip 

 with a few short black bristles, ferruginous towards the base, where 

 it has a horn of the same colour: chest and breast dark piceous, 

 clothed with tawny hairs: abdomen black, adorned (especially at the 

 tip and on each side of the base) with whitish hairs: legs very dark 

 piceous, clothed with black hairs : wings ferruginous, especially at 

 the base and along the fore borders ; veins ferruginous ; brands 

 none ; poisers piceous. Length of the body 7 lines ; of the wings 

 14 lines. 



Tabanus trispilus, Wied. Auss. Zweif. i. 62. 

 a. Georgia. From Mr. Abbot's collection. 



