DIPTERA. 275 



2. Borborus nitidus, Meig. Abundant. 



3. B. ater, Meig. Abundant. 



Ephydridae. 



1. Ephydra riparia, Fall. Abundant. 



2. E. noctula, Meig. Common. 



3. E. quadrata, Fall. Common. 



4. E. coarctata, Fall. Common. 



1. Discomyza incurva, Fall. Very rare. Taken by 

 my father in Whitedown chalk-pit, July 6th, 

 1870. 



1. Gymnopa subsultans, Fab. Common. 



2. G. glabra, Fall. Common. 



1. Madiza oscinia, Fall. Very rare. Taken by my 

 father in Whitedown chalk-pit, August 4th, 

 1871. 



Drosophilida. 



1. Drosophila cellaris, Linn. Abundant. 



2. D. cameraria, Curt. Abundant. 



3. D. graminum, Fall. Abundant. 



4. D. apicalis, Hardy. Abundant. 



5. D. flava, Fall. Common. 



6. D. transversa, Fall. Common. 



1. Asteia amcena, Meig. Abundant. 



2. A. concinna, Meig. Common. 



1. Leucopis puncticornis, Meig. Common. 

 1. Leptomyza gracillis, Fall. Not common. 



