DIPTERA. 285 



A nihomyida. 



1. Lispe tentaculata, DeGeer. Of occasional occur- 

 rence on the leaves of the water-lilies in 

 Roundchimneys Pond, June and July. 



1. Myopina riparia, Fall. Bare. 



1. Ccenosia means, Meig. Common. 



2. C. triangula, Zett. Common. 



3. C. pedella, Fall. Rare. 



4. C. gemrnalis, Rond. Rare. 



5. C. nigridigitata, Rond. Rare. 



6. C. albicornis, Meig. Not common. 



7. C. tigrina, Fab. Rare. 



1. Homalomyia pretiosa, Sch. Rare. 



2. H. pallitibia, Rond. Rare. 



3. H. maniculata, Meig. Common. 



4. H. mutica, Zett. Common. 



5. H. canicularia, Linn. Abundant. 



6. H. floricola, Meig. Common. 



7. H. lactucse, Bouch. Abundant. 



1 . Anthomyia pluvialis, Linn. Common. 



2. A. transversa, Fall. Very rare. 



1. Azelia Staegeri, Zett. Rare. 



2. A. Macquarti, Zett. Rare. 



3. A. parva, Rond. Rare. 



4. A. triquetra, Fall. Rare. 



1. Acanthiptera inanis, Fall. Very rare. 

 1. Mycophaga fungorum, Desv. Rare. 

 1. Chortophila rotundicornis, Zett. Common from 

 September to April. 



