J 9 10] Graenicher, Flies of Wisconsin. 39 



very slightly. Male, June 22, 1898: Band on segment 2 not 

 interruped, hardly touching the lateral margin. Bands on seg- 

 ments 3 and 4 not reaching the margin, the one on 3 emarginate, 

 that on 4 narrowly interrupted. Material from the St. Croix 

 region (5 specimens from Douglas, Burnett and Polk Cos.) : 

 not so variable, band on segment 2 only reaching the lateral 

 margin. 



X. flavipes Loew. 1 specimen taken at Milwaukee, May 27, 1898. 



X. tenuis Osburn. (Can. Ent. XL, p. 8). A female specimen taken at 

 Milwaukee, July 4, 1907, agrees with the description, but it has 

 a broad band on femur and tibia of hind legs only. In size and 

 form it is like emarginata. 



Mesogramma. 



M. geminata Say. Milwaukee, Washington, Door, Burnett and Polk 



Counties. 

 M. marginata Say. Milwaukee, Washington and Door Cos. 

 M. polita Say. Milwaukee Co. 



Sphaerophoria. 



S. cylindrica Say. Milwaukee, Bacine, Washington, Marathon, Douglas, 

 Burnett and Polk Cos. 



Neoascia. 



N. distincta Williston. Milwaukee Co., 1 specimen taken May 13, 1898. 



N. globosa Walker. 3 specimens from Milwaukee, 3 from Racine and 

 1 from Sheboygan Co. All have 2 interrupted reddish-yellow 

 abdominal bands and a black ring on front and middle femora 

 and tibiae; they therefore represent Prof. Williston's "third 

 variety" ( Synopsis N. Am. Syrphidse, p. 112). There is an additional 

 variety in our region (4 specimens from Milwaukee Co.), in 

 which the body is smaller and more slender, with bands on seg- 

 ments 2 and 3, which are not interrupted . 



Rhingia. 

 R. nasica Say. Milwaukee, Washington, Marathon" and Polk Cos. 



Volucella. 



V. evecta Walker. Milwaukee and Marathon Cos. 1 specimen (Mil- 

 waukee, June 22. 1908) represents var. sanguinea Will. In this 



