LIST OF DIPTERA. 



LoncHjEa, Fallen. 



Lonch^a nigra, Meig. Dipt. v. 305, 2. Macq. Hist. Nat. Dipt. ii. 



512,2. 

 a. England. Presented by F. Walker, Esq. 



Lonch^a tarsata, Fall. Ortal. 26, 3. Meig. Dipt. v. 305, 4, pi. 47, 

 /. 32. Macq. Hist. Nat. Dipt. ii. 512, 4. Zett. Ins. Lapp. 

 754, 5. 



a. England. 



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



G. Barnston, Esq. 



Lonch^ea vaginalis, Fall. Ortal. 26, 2. Meig. Dipt. v. 307, 8. 

 Macq. Hist. Nat. Dipt. ii. 513, 6. Zett. Ins. Lapp. 753, 1. 



a. England. Presented by F. Walker, Esq. 



b. England. 



Lonch^a caerulea, n. s.,mas. et fern Cyanea, palpis nigris, anten- 

 nis ferrugineis supra et apice nigris, pedibus nigris, tarsis fulvis, 

 alis limpidis. 



Body bright blue, shining, clothed with black hairs : head and 

 chest beset with black bristles : head black ; sides of the face with- 

 out bristles ; epistoma slightly prominent : eyes bright red ; fore 

 part nearly flat, its facets a little larger than those elsewhere : sucker 

 pitchy, clothed with tawny hairs ; palpi black, beset with black 

 bristles : feelers ferruginous, as long as the face, with a black stripe 

 along the upper side; tips black; third joint full six times the 

 length of the second, slightly decreasing in depth from the base to 

 the tip, which is rounded: abdomen nearly elliptical, broader but 

 hardly longer than the chest : oviduct of the female forming a slen- 

 der tube, which is more than half the length of the abdomen : legs 

 black, clothed with short black hairs ; feet tawny, with black tips ; 

 foot-cushions yellow : wings colourless ; wing-ribs and veins pale 

 tawny, the latter darker towards the tips ; lower cross-vein nearly 

 straight ; poisers tawny, with pitchy knobs. Length of the body 

 2\ lines ; of the wings 5 lines. 

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



