72 Bulletin Wisconsin Natural History Society. [Vol. 9, Nos. 1-2. 



Z. obliquefasciatum Macquart. A male from Maiden Eock (Pierce 

 Co.). In this specimen the thorax is darker than in one from Mere- 

 dosia, 111., contained in the collection of the Public Museum of Mil- 

 waukee ; as regards the color of the thorax this Illinois specimen 

 agrees better with the description than the specimen from Maiden 

 Rock. The latter is the only one recorded from Wisconsin, so far. 



Z. pygmaeum Williston. Nine specimens from Pierce Co. (Prescott 

 and Maiden Rock) and one from Buffalo Co. (Fountain City). 



Eccemyia. 



E. abbreviata Loew. Altogether twenty-eight specimens were 

 taken in St. Croix, Pierce and Buffalo Cos. 



