ICHNEUMON-FLIES, PART 2\ XORIDINAE 



479 



Black. Labrum, palpi, and tegula dark brown or blackish; front 

 and middle tibiae and tarsi with brownish tinges; abdomen red beyond 

 first segment, the apex of first segment also red; wings weakly 

 infuscate. 



The female is distinguished by black legs and red abdomen. No 

 other Nearctic species has this color combination. 



Figures 218, 219. — Localities: 



218 (left), Odontocolon airipes; 219 (right), O. 

 dreisbachi. 



Specimens (17 d", 329): From Alabama (De Soto State Park); 

 Alberta (Nordegg) ; Connecticut (Southington) ; Illinois (Chicago) ; 

 Maine (Brunswick); Massachusetts (Woods Hole); Michigan (Beaver 

 Island in Charlevoix Co., Cheboygan Co., Douglas Lake, Gull Lake 

 Biological Station in Kalamazoo Co., High Island in Charlevoix Co., 

 Lapeer Co., Midland Co., Sand Point in Huron Co., and Wexford 

 Co.); New Hampshire (Franconia); New York (Ithaca, between 

 Ithaca and Ellis, Lake George, and Utica); North Carolina (Raleigh); 

 Nova Scotia (Kentville and Smith's Cove); Ontario (Georgetown, 

 Kearney, Ottawa, Port Ryerse, and Trenton); Pennsylvania (Rock- 

 ville in Dauphin Co.); Prince Edward Island (Brackley Beach and 

 Dalvay House, both in Canadian National Park); Quebec (Aylmer, 

 Lac Ste. Marie, Laniel, Wakefield, and Wright); Virginia (Dunn 

 Lorirg); West Virginia (Lost River State Park in Hardy Co.); and 

 Wisconsin (Nekoosa). 



Collection dates are nearly all in June, July, and August (to August 

 31). Those outside these months are: May 4 at Raleigh, N. C, and 

 in De Soto State Park, Ala.; and May 30 in Lapeer Co., Mich. 



This species is in the Carolinian and Alleghanian faunas. Adults 

 occur from early to late summer. Although it is moderately common 

 in collections, we ourselves have never taken it. 



