152 BULLETIN OF WISCONSIN NATURAL HISTORY SOCIETY. VOL. 4, NO. 4. 
carina above. Abdomen not quite as long as the head and thorax to- 
gether, the petiole twice as long as the hind coxse ; irregularly striate 
on the sides ; above with an enclosed rugose space traversed by a deli- 
cate median longitudinal carina. Second segment at the base with a 
median sulcus as long as the petiole and a short lateral one on each 
side ; following segments smooth, impunctate, scarcely projecting be- 
yond the second. Wings yellowish-hyaline, not emarginated at the tip. 
Legs ferruginous, stout, the coxae black. 
Described from a female collected by the writer at Fox Point, 
Milwaukee Co., Wis., October 27, 1906. 
The sculpture of the petiole will serve to distinguish the species. 
It seems to be more closely related to the European G. rufipes 
Thorns, than to any North American species. 
Public Museum, Milwaukee, October 16, 1906. 
