ICHNEUMON-FLIES, PART 2\ XORIDINAE 489 



Jaffrey); New Jersey (Chatham, Middlesex Co., Moorestown, and 

 Riverton); New York ("Artists Brook in Essex Co./' Beaver Creek 

 in McLean Reserve in Tompkins Co., Bemus Point, Calverton on 

 Long Island, Golden, Greene Co., Hamburg, Ithaca, Keene Valley 

 in Essex Co., and West Farms in New York City); Ohio (Bedford, 

 Cantwell Cliffs in Hocking Co., Delaware Co., Hinckley in Medina 

 Co., Logan Co., Medina, Puritas Springs in Cuyahoga Co., and 

 Put-in-Bay); Ontario (Jockvale, Marmora, Merivale, Niagara Glen, 

 Ottawa, and Sudbury); Pennsylvania (Allegheny Co., Clark's Valley 

 in Dauphin Co., Harrisburg, Inglenook in Dauphin Co., Jeannette, 

 North Mt., Ohiopyle, and Pike Co.); Quebec (Aylmer, Brome, Covey 

 Hill, Harrington Lake in Gatineau Park, Hemmingford, Hull, Knowl- 

 ton, Lanoraie, La Trappe, St. Johns Co., and Wakefield); Vermont 

 (Laurel Lake near Jacksonville); Virginia (Glencarlyn, Great Falls, 

 Hunter in Fairfax Co., and Rosslyn); Washington (Dartford in 

 Spokane Co.); West Virginia (Cheat Mt. in Randolph Co.); and 

 Wisconsin (Sawyer Co.). 



Collection dates are distributed from rather early spring to early 

 fall. Unusually early and late dates are: May 3, 4, and 8 at Ann 

 Arbor, Mich.; May 7 in Washington Co., Minn.; May 15 at Bedford, 

 Ohio; May 20 in Marquette Co., Mich.; September 14 at Riverton, 

 N. J.; September 20 at Bemidji, Minn.; September 21 in McLean 

 Bogs Reserve, Tompkins Co., N. Y. ; and September 29 at Calverton, 

 Long Island, N. Y. We have found adults moderately common on 

 the undergrowth of damp, deciduous forests. 



There is one reared specimen among our material: d", from bupre- 

 stid in Betula nigra, Hunter, Fairfax Co., Va., May 14, 1914, S. A. 

 Rohwer. Pechuman (1937, Bull. Brooklyn Ent. Soc, vol. 32, p. 16) 

 records the species as a parasite of Dicerca divaricata. 



This species occurs from the Atlantic, to and into the Rocky 

 Mountains in the Transition and Upper Austral zones. It is adult 

 from rather early spring to early fall. Its known hosts are buprestids. 



4. Genus Xorides 



Figure 306,a 



Head and body cylindric, weakly flattened, or sometimes strongly 

 flattened; apex of mandible chisel-shaped, without teeth; frons with- 

 out a median tubercle or horn, or sometimes with a horn or lamella 

 between the antennal sockets; female flagellum subapically elbowed 

 or curved, on the outer side of the elbow or curve with one to several 

 peglike bristles; epomia present, usually strong, long, dorsally turning 

 forward and usually forming a projecting tooth at the turn; hind 

 femur not thickened, without a tooth beneath; first abdominal seg- 

 ment subcylindric or prismatic basaily, expanded apically, stout and 



526527—60 32 



