196 LIST OF DIPTERA. 



as the chest; first and second joints hairy; second joint a little 

 shorter than the first ; third hardly curved, nearly as long as the 

 first: chest brown, clothed with golden hairs, which are thin on the 

 back, but more thick on each side and in front of the scutcheon ; 

 the latter is ferruginous, and the chest is also adorned with two 

 broad, indistinct, dull tawny stripes : abdomen pale ferruginous ; 

 first segment still paler ; second almost white, and having two short 

 brown stripes, which converge together and meet in front, and form 

 a cone including a yellow space ; under-side of the abdomen ferru- 

 ginous, yellowish white at the base : legs tawny, wings colourless, 

 tawny along the fore border, which emits a very short band ; the 

 latter is very near to, and inclined towards, the base of the wing; 

 there is also a very broad band passing across the disk of the wing 

 towards the hind border, and becoming bifurcate when it approaches 

 thereto ; veins yellow in the colourless, piceous in the coloured parts 

 of the wings ; poisers tawny, with ferruginous knobs. Length of the 

 body 4 lines ; of the wings 8 lines. 



a. East Indies. 



Chrysops semicirculus, n. s., fern. Fulvus, thorace piceo quinque- 

 vittato. abdomine basi livido, pedibus fulvis, femoribus posticis 

 ferruyineis, alls limpidis fasciis unafusca alteraque fulva fusco 

 circumdata. 



Body tawny: head yellow in front, with a piceous tubercle, on 

 which the eyelets are seated, and another and larger one before the 

 base of the feelers ; the latter are yellow and as long as the chest : 

 lancets and palpi tawny : under-side of the head clothed with yellow 

 hairs : chest with five broad but not clearly defined piceous stripes, 

 thinly clothed with golden hairs on the back, but more thickly so on 

 the sides and across in front of the scutcheon : abdomen livid at the 

 base : legs tawny, clothed with white down ; hips, knees and hind 

 thighs ferruginous : wings colourless ; the fore border tawny, which 

 colour passes to pale brown before the tip, and sends forth near the 

 base a narrow band that passes to the hind border ; there is also a 

 broad pale brown band across the middle of the wing ; its disk is 

 tawny, and it is forked before it attains the hind border; veins 

 tawny in the coloured, yellow in the colourless part of the wing ; 

 poisers tawny. Length of the body 4 lines ; of the wings 8 lines. 



a. East Indies. 



Chrysops vittatus, Wied. Dipt. Exot. i. 106, 7. Auss. Zweif. i. 



200, 8. Harr. Ins. New Engl. 406. 

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



