Biological Papers. 307 



Family Cecidomyiid^. 

 Lestremia kansensis Felt, n. sp. May. 



leucophaga Meig. August. 



vernalis Felt, n. sp. Wichita; April. 

 Porricondyla tuckeri Felt, n. sp. August. 



Family Asilid^. 

 Philonicus rufipennis Hine. May and June. 



Family Syrphid^. 

 Melanostoma mellinum L. June, twilight. 



