22 KANSAS UNIVERSITY SCIENCE BULLETIN. 



Order DIPTERA. (North American List.) 

 DoUcliopodidx — continued. 

 Thinophilus pectinifei' Wheeler. 

 Thrypticus cupuliferus Aid. 



singularis Aid. 

 Hydrophorus canescens Wheeler. 

 Liancalus hydrophilus Aid. 



similis Aid. 

 Dolichopus albicoxa Aid. 



ciliatus Aid 



coloradensis Aid. 



convei'gens Aid. 



dakotensis Aid. 



duplicatus Aid. 



grandis Aid. 



angustatus Aid. 



idahoensis Aid. 



kansensis Aid. 



marginatus Aid. 



obeordatus Aid. 



occidentalis Aid. 



plumosus Aid. 



tenuipes Aid. 



vigilans Aid. 



willistonii Aid. 

 Herocostomus latipes Aid. 

 Paraclius filifer Aid. 



venustus Aid. 

 Sarcionus lineatus Aid. 

 Pelastoneurus argentifer Aid. 

 kansensis Aid. 



Empididw. 

 Drapetis flavida Will. 

 flaviceps Will. 

 Paraxhalassius aldrichi Mel. 

 Thinodromia inchoata Mel, 

 Hilara nugax Mel. 

 Rhamphomyia sociabilis Will. 



Phoridx. 

 Aphiochaeta halictoi'um Mel. & Brues. 



Platypezidie. 

 Callimyia venusta Loew. 

 Calotarsa ealceata Snow. 



ornatipes Towns. 

 Platypeza abscondita Snow. 



cinerea Snow. 



pulchra Snow. 



tseniata Snow. 



umbrosa Snow. 



unicolor Snow. 



Pipunculidx. 

 Pipunculus fuscitaris Adams. 



Syi-phid<e. 

 Microdon lanceolatus Adams, 

 melgaogaster Snow, 

 pallipennis Snow, 

 violens Towns, 

 xanthophilus Towns. 



