16 LIST OF DIPTERA. 



feelers brown: legs dull yellow, hairy: wings colourless, hairy; 

 veins pale brown ; poisers white. Fern. — Chest yellow ; middle 

 stripe not divided : abdomen dingy yellow. Length of the body 

 1 line ; of the wings 2 lines. 



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

 G. Barnston, Esq. 



Chironomus albitibia, n. s., mas. Fuscus, nitens, abdomine nigro- 

 fusco, pedibus flavis, tibiis albis, alis limpidis. 



Body brown, shining : abdomen dark brown : feelers pale 

 brown : legs dull yellow ; shanks white : wings colourless ; veins 

 dull yellow ; poisers brown. Length of the body f line ; of the 

 wings lj line. 



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



Chironomus socius, n. s., mas. Nigro-fuscus, tkorace hirto, anten- 

 nisfuscis, pedibus pallide fuscis, alis albidis. 



Body dark brown : chest rather hairy, not shining : feelers 

 brown : legs dull pale brown : wings whitish ; veins and poisers 

 dull yellow. Length of the body 1 \ line ; of the wings 2 J lines. 



a. East Indies. 



Chironomus jucundus, n. s., mas. Rufus, thoracis vittis scutelloque 

 nigris, abdomine flavo cingulis apiceque nigris, antennis fulvis, 

 pedibus flavis, tibiis apice fuscis, alis albis. 



Chest red, with a broad black stripe on each side ; scutcheon 

 black : abdomen yellow, hairy ; hind borders of the segments, and 

 the whole of the latter segments, black : feelers tawny, and adorned 

 with tawny hairs : legs pale yellow, hairy ; tips of shanks brown : 

 wings white ; veins pale yellow ; poisers white. Length of the body 

 2j lines ; of the wings 4 lines. 



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



Chironomus nigri tibia, n. s. Niger, abdomine basi flavo, antennis 

 fuscis, pedibus flavis, femoribus tibiis tarsorumque articulis 

 apice nigris, alis limpidis fusco fasciatis. 



Chest black : abdomen yellow at the base : palpi brown : 

 legs yellow ; tips of thighs, and of shanks, and of joints of feet, 

 black : wings colourless ; a broad brown band across each wing, 

 faint towards the hind border; veins brown, yellow towards the 

 base : poisers lemon-colour. Length of the body 2j lines ; of the 

 wings 4£ lines. 



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

 G, Barnston, Esq. 



