44 Bulletin Wisconsin Natural History Society. [Vol. 8, No. 1. 



Z. lativentre Graenicher. Described from a specimen collected at the 

 mouth of the Yellow River in Burnett Co., July 13, 1909. Type: 

 Cat. No. 292.17 Milwaukee Public Museum. 



Z. pygmaeum Williston. Milwaukee and Douglas Cos. 



Eccemyia. 



E. abbreviata Loew. Milwaukee, Washington, Racine and St. Croix 



Counties. 

 E. loraria Loew. Milwaukee, Washington and Douglas Cos. 



Myopa. 



M. clausa Loew. Milwaukee Co. 



M. pilosa Williston. Milwaukee and Washington Cos. 



M. plebeia Williston. Burnett Co., 1 specimen July 29, 1909. Some- 

 what differing from the description. Front black, red on sides 

 and below only. The red on lateral margins and posterior seg- 

 ments of abdomen very dark, not at all distinct. Bases of femora, 

 knees and tarsi yellowish, otherwise legs black, with a reddish 

 tinge. 

 Public Museum, Milwaukee. Wis. 

 February 12, 1910. 



