LIST OF DIPTERA. 101 



brown ; poisers yellow. 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. 



Div. E. Meig. Dipt, pi. 9, /. 18. 



Mycetophila domestica, Meig. Dipt. vi. 303, 48. 

 a. England. From Mr. Walker's collection. 



Mycetophila crassicornis, Stann. Obs. Sp. Myc. 22, 20. 

 a. England. From Mr. Walker's collection. 



Mycetophila obscura, n. s. Fusca, capite subtus scutello pectore 

 abdominisque segmentis basi flaws, thorace postico fulvo vittato, 

 antennis fuscis, pedibus flavis, alis limpidis. 



Body brown : head yellow beneath : eyes black : palpi yellow : 

 feelers brown, yellow at the base : chest with a tawny stripe forked 

 in front on its hinder part ; scutcheon and breast yellow : abdominal 

 segments yellow at the base : legs yellow ; hips very pale yellow ; 

 feet dull yellow : wings colourless ; veins brown ; poisers yellow. 

 Length of the body 1^ line ; of the wings 3 lines. 



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

 G. Barnston, Esq. 



Mycetophila despecta, n. s. Fusca, thorace ferrugineo disco rufo- 

 fusco, abdominis suturis ventreque ferrugineis, antennis fuscis, 

 pedibus flaws, alis limpidis. 



Head and palpi brown: eyes black: feelers brown, yellow at 

 the base : chest ferruginous, reddish brown on the disk : abdomen 

 brown ; ventral segments and hind borders of dorsal segments ferru- 

 ginous : legs yellow ; feet brown : wings colourless ; veins tawny ; 

 poisers yellow. Length of the body If line ; of the wings 3 lines. 



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

 G. Barnston, Esq. 



Mycetophila apicalis, n. s., mas. Nigra, longa, cinereo pubescens, 

 abdominis apice fulvo, antennis cinereis thorace multo longi- 

 oribus, pedibus fusco-fulvis, alis subcinereis. 



Body long, black, clothed with gray down : tip of the abdomen 

 tawny : feelers gray, much longer than the chest : legs tawny ; tro- 

 chanters black ; shanks and feet brown : wings slightly gray ; veins 



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