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



or less red throughout, while in the type the scutellum is red at the 

 apex only, according to the description. This specimen is the only 

 representative of the species in the Public Museum at Milwaukee. 

 S. vulgaris Loew. Five from Maiden Rock (Pierce Co.). 



Phthiria. 



P. aldrichi Johnson. Last year this species was reported from 

 the eastern part of this state (Can. Ent. 1910, pp. 26-29), two speci- 

 men having been taken in Washington Co. Thirteen speci- 

 mens from Maiden Rock (Pierce Co.), and one from Fountain City 

 (Buffalo Co.) represent a considerable degree of variation, both in 

 size and coloration. In length they run from two to four mm. On 

 legs and abdomen either the yellow or the black predominates. In 

 some of the specimens the scutellum is entirely yellow, in others 

 partly or entirely black. In the female the front may be very light 

 or very dark; in the latter case there is a yellow line along the 

 anterior orbits. 



P. punctipennis Walker. Two specimens from Hudson (St. Croix 

 Co.) and two from Prescott (Pierce Co.). 



Geron. 



Q. calvus Loew. Ten specimens from Maiden Rock (Pierce Co.). 

 Q. subauratus Loew. Fairly common throughout the region under 

 consideration. Numerous specimens from St. Croix (Hudson), Pierce 

 (Prescott and Maiden Rock) and Buffalo Cos. (Fountain City). 



SYRPHID/E. 

 Chrysogaster. 



C. pulchella Williston. Two males from Fountain City (Buffalo 

 Co.). 



Pipiza. 



P. festiva Meigen. One female from Maiden Bock (Pierce Co.). 

 Length nine mm. This species has been reported from Nebraska by 

 Jones (Jour. N. Y. Ent. Soc. XV, p. 89, 1907), and from Massachusetts 

 and Maine by Johnson (Psyche. XIV, p. 76, 1907). Our specimen an- 

 swers the description in all respects, except that the legs are dark 

 and show a very small amount of light color. 



P. pistica Williston. One female from Prescott (Pierce Co.). 



