DIPTERA. 271 



1. Baccha elongata, Fab. Common. 



2. B. obscuripennis, Meig. Abundant. 



1. Ascia podagrica, Fab. Abundant. 



2. A. dispar, Meig. Common. 



3. A. hastata, Hoff. Common. 



4. A. floralis, Meig. Common. 



Pipunculidce. 



1. Pipunculus carnpestris, Latr. Common in sbady 



situations during September. 



2. P. ater, Meig. Not common. 



3. P. pratorum, Fall. Common. 



4. P. flavipes, Meig. Abundant. 



5. P. sylvaticus, Meig. Abundant. 



6. P. geniculatus, Meig. Common. 



7. P. nigritulus, Zett. Common. 



8. P. auctus, Fall. Common. 



9. P. ruralis, Meig. Abundant. 



1. Cbalarus holosericeus, Meig. Abundant. 



2. C. spurius, Fall. Common. 



CONOPINA. 

 Myopida. 



1. Occemyia atra, Fab. Very rare. Taken by myself, 

 near Roundchimneys Pond, June 14th, 1870, 

 September 24th, 1870, and June 23rd, 1877. 



1. Myopa buccata, Linn. Of occasional occurrence on 

 flowers in May and June. 



