500 PROCEEDINGS OF THE NATIONAL MUSEUM vol. us 



veins yellow; marginal broader than postmarginal ; marginal averages 

 .26 mm. (.25-.30) and postmarginal averages .26 mm. (.22-.30) in 

 length; thus marginal and postmarginal often equal in length; stigmal 

 club small and rectangular in shape. 



Males: There are only two males in the series that are curled up 

 so that a true measurement of their length cannot be made. Probably 

 averages 2.18 mm. in length. Abdomen shiny black to very deep 

 brown. Tegula dark brown. Scape of antenna black except base 

 which may be yellowish brown. Legs with black or dark brown on 

 aU femora and tibiae; apices and knees yellowish brown. Wing veins 

 much the same as in the female; marginal averages .25 mm. and post- 

 marginal .23 mm. in length. 



Types: 6 females and 2 males. Holotype female, allotype male, 

 and paratypes in the U.S. National Museum (USNM 66062); para- 

 types in Bugbee collection, Allegheny College, Meadville, Pa. 



Type locality: King and Queen Co., Va. Collected June 5 and 8, 

 1940. L. A. Hetrick collection. 



Distribution: United States: Known only from Virginia. 



Host: Parasite of pine xyelid gall. 



Remarks: The marginal vein is broader than the linear post- 

 marginal and the two veins are most often equal in length. The female 

 genitalia are short in relation to the height and the dorsal valves are 

 narrow for their horizontal length. Scape and tegula are yellowish 

 brown. 



66. Eurytonia crassineura Ashmead 



Map 29 

 Eurytoma crassineura Ashmead, 1894, p. 324. — Schedl, 1932, pp. 1, 2. — Peck, 

 1951, p. 576. 



Types: U.S. National Museum no. 25508. Type series consists of 

 6 females and 3 males of which 1 female has been labeled and desig- 

 nated as lectotype. 



Type locality: Morgantown, W. Va. from Scolytus rugulosus Ratze- 

 burg. 



Distribution: United States: Virginia, West Virginia, Ohio, Wash- 

 ington, D.C., New York, North Carolina, Idaho, Oregon, Colorado. 

 Canada: Quebec, Ontario, Nova Scotia. 



Host: Scolytid larvae in plum, cherry, and apple (Ashmead, 1894). 

 Scolytus rugulosus Ratzeburg in peach (Ashmead, 1894). Magdalis 

 armicollis Say in elm (record from U.S. National Museum collection). 



Remarks: The rectangular-shaped abdomen, very broad dorsally, 

 with the long sixth abdominal tergum that often covers the seventh 

 tergum and that lacks sculpturing except at the extreme ventral, 

 anterior edge, help to distinguish this species. In addition, the 



