LIST OF DIPTEKA. 1153 



Page 213. 



Ehagio mystacea. 



b. New York. Presented by the Entomological Club. 



c. Trenton Falls. Presented by E. Doubleday, Esq. 



Page 214. 

 For Chrysopita, read Chrysopila. 



Page 220. 

 Atheeix vidua, n. s., mas. et fern. Nigro-cinerea, capite aniico 



cano, antennis nigris basi ferrugineis, pedibus piceis, alls cine- 



reis ad costam subfulvis. 



Body dull black, clothed with black hairs : head gray, with a 

 hoary tinge in front : eyes pitchy, convex ; all the facets of the fe- 

 male very small ; those of the male rather larger on the fore part 

 than elsewhere : sucker, palpi, and feelers black ; first and second 

 joints of the feelers dark ferruginous: chest slightly gray, somewhat 

 pitchy on each side near the base of the wings : legs pitchy, clothed 

 with black hairs ; claws black ; foot-cushions dark tawny : wings 

 gray, with a slight tawny tinge along the fore border from the base 

 to the brand, which is brown ; wing-ribs tawny ; veins black, tawny 

 at the base ; poisers pitchy. Length of the body If line ; of the 

 wings 4 lines. 

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



G. Barnston, Esq. 



For Tyolina, read Ptiolina, Stceger. 



For Tyolina tristis, read Ptiolina obscura, Zett. Dipt. Scand. i. 



227, 1. Leptis obscura, Fall. Dipt. Anthr. 14, 11. Zett. Ins. 



Lapp. 527, 7. Atherax obscura, Meig. Dipt. ii. Ill, 11. 

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



Ptiolina nigra, Zett. Dipt. Scand. i. 227, 2. Leptis obscura, var. 



Zett. Ins. Lapp. 527, 7. 

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



Page 229. 

 For Mydas clavigera, read Mydas claviger. 



