ICHNEUMON-FLIES, PART 2: XORIDINAE 519 



brown from near its basal 0.3 to near apical 0.2; tarsus light brown, 

 its apical segment fuscous and in male the basitarsus dark brown 

 basally. 



Specimens (230 cf, 2439): From Connecticut (East River, Hamden, 

 Hartford, and New Haven) ; District of Columbia (Rock Creek Park) ; 

 Georgia (Clayton); Illinois (Chicago, Moline, and Willow Springs); 

 Indiana; Kansas (Douglas Co.); Maryland (Bowie, Cabin John, and 

 Takoma Park); Massachusetts (Amherst, Cohasset, Dorchester, 

 Forest Hills, Tewksbury, and West Roxbury) ; Michigan (Ann Arbor, 

 Antrim Co., Aurelius, Detroit, East Lansing, George Reserve in Liv- 

 ingston Co., Kalkaska Co., Midland Co., Newago Co., and Shiawas- 

 see Co.); Minnesota (Carver Co. and Mille Lacs Co.); Missouri 

 (Clark Station near St. Louis); Nebraska (Lincoln); New Jersey 

 (Chatham, East Orange Water Res., and West Caldwell); New York 

 (Armonk, Connecticut Hill at 2,095 ft., East Aurora, Flatbush, 

 Gardiners Island, Hillsdale, Ithaca, Lockport, McLean Bogs Reserve 

 in Tompkins Co., New Rochelle, New York City, Olcott, South 

 Haverstraw, Westbury, Westchester Co., White Plains, and Yonkers); 

 North Carolina (Tryon); North Dakota (Sully's Hill National Park) ; 

 Ohio (Cleveland, Columbus, Dayton, Delaware Co., Franklin Co., 

 Hinckley in Medina Co., Hocking Co., Puritas Springs in Cuyahoga 

 Co., Summit Co., and Westview); Ontario (Ancaster, Bells Corners, 

 Orillia, Ottawa, and Point Pelee); Penns}dvania (Allegheny Co., 

 Castle Rock in Delaware Co., Crisp in Westmoreland Co., Harris- 

 burg, Jeannette, Linglestown, Natrona, Overbrook, Pittsburgh, 

 Pittstown, Shiremanstown, and Stoverdale in Dauphin Co.); Quebec 

 (Aylmer, Hull, Joliette, and Mount Yamaska) ; Texas (Dallas and Dew- 

 eyville); Vermont (Laurel Lake near Jacksonville); West Virginia 

 (Cheat Mt. at 2,000 ft. in Randolph Co.); and Wisconsin (Menasha). 



The majority of collection dates are from late May to early August, 

 but the total seasonal range is somewhat greater. The earliest and 

 latest dates are: April 30 in Douglas Co., Kans.; May 5 in Midland 

 Co., Mich.; May 7 at Chicago, 111.; May 8 at East Lansing, Mich.; 

 September 8 at New Rochelle, N. Y. ; September 9 in Rock Creek Park, 

 D. C; September 20 at Aurelius, Mich.; and October 4 at Flatbush, 

 Long Island, N. Y. We have found the species a number of times on 

 standing dead or nearly dead deciduous trees. It is the commonest 

 species of the genus in eastern North America. 



A large portion of the specimens were reared. Records from the 

 pin labels are: 3 rearings (either individuals or reared lots) from 

 Saperda discoidea in Carya, 3 from Saperda tridentata in Ulmus, 

 1 from Saperda tridentata in an unspecified tree, 9 from Carya, 2 from 

 Fagus, 1 from Ulmus americana, and 5 from Ulmus sp. 



