264 LIST OF DIPTERA. 



Anthrax fervida, n. s., mas. Nigra, capite piceo, pectore cano, ab- 

 domine ferrugineo, nigro subvittato apiceque nigro fasciculate, 

 ventre flavo basi cano, antennis nigris, pedibus fulvis, tarsis pi- 

 ceis, alis fulvis apice limpidis. 



Body narrow : head piceous, clothed with short tawny hairs 

 behind and in front, hoary beneath : feelers black : mouth ferrugi- 

 nous: eyes bronze colour: chest black, thickly clothed with bright 

 tawny hairs ; breast hoary : abdomen long-obconical, rather short, 

 ferruginous, clothed with bright tawny hairs, and having on the 

 back a black stripe which is interrupted on the hind border of each 

 segment ; a tuft of black hairs at the tip ; under-side yellow and 

 clothed with yellow hairs, hoary at the base : legs tawny ; shanks 

 darker than the thighs ; feet piceous : wings long, narrow, tawny, 

 paler along the hind borders, colourless at the tips ; wing-ribs and 

 veins piceous, the latter black towards the tips ; poisers tawny, with 

 yellow knobs. Length of the body 3§ lines ; of the wings 9 lines. 



Anthrax cognata, n. s., mas. Nigra, pectore piceo, abdomine fer- 

 rugineo, basi nigro maculato et utrinque fulvo fasciculate), an- 

 tennis nigris, pedibus fulvis, genubus tarsisque piceis, ciliis sub- 

 cinereis, basi costaque fulvis. 



Body narrow, black : head clothed behind with short yellow 

 hairs, and having a slight hoary bloom in front : feelers black : eyes 

 bronze-colour : chest thickly clothed with bright tawny hairs : breast 

 piceous, with a hoary bloom : abdomen ferruginous, clothed with 

 bright tawny hairs, in which a few black hairs are mingled on each 

 side ; the base has a black spot in the middle and a tuft of tawny 

 hairs on each side : legs tawny, beset with a few black bristles ; 

 knees and feet piceous : wings narrow, very slightly gray, tawny at 

 the base and along the fore borders ; wing-ribs and veins piceous, 

 the latter black towards the tips ; poisers yellow. Length of the 

 body 3 lines ; of the wings 8 lines. 



a. Sierra Leone. Presented by the Rev. D. F. Morgan. 



Group XV. 



Anthrax Pegasus, Wied. Auss. Zweif i. 298, 59. 

 a. Brazil. From Mrs. Noel's collection. 



Group XVI. 



Anthrax Halcyon, Say, Long's Exped. to St. Peters River, App. 



371, 1. Wied. Auss. Zweif. i. 288, 44, pi 3, /. 6. 

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



