NO. 3B33 CHALCID WASPS OF GENUS EURYTOMA — BUGBEE 499 



64. Eurytoma rhois Crosby 



Map 28 



Eurytoma rhois Crosby, 1909, p. 52; 1909, pp. 369, 385-388.— Gahan, 1922, 

 p. 42.— Bridwell, 1923, p. 262.— Bugbee, 1939, pp. 415-427; 1941, p. 101.— 

 Peck, 1951, p. 578. 



Types: Female holotype and male allotype, plus paratypes, in the 

 collection of Cornell University, Ithaca, N.Y. 



Type locality: Ithaca, N.Y. 



Distribution: United States: New York, Washington, D.C., Penn- 

 sylvania, Ohio, Indiana, Tennessee, Arkansas, Missouri, Louisiana, 

 Kansas, and Michigan. 



Host: Phytophagous in the seeds of sumac, Rhus typhina, R. glabra, 

 and R. copallina. 



Remarks: This widespread species occurs wherever its host, sumac 

 species, are found. The oval abdomen with the sixth tergum equal in 

 length to four and five combined, the reduced sculpturing on the 

 lateral surface of the sixth, and its smaller size, will help to differentiate 

 this species from E. seminis Bugbee. 



65. Eurytoma levo, new species 



Map 29 



Female: Black. Length averages 3.3 mm. (2.5-3.8). Abdomen 

 averages 2.0 mm. (L7-2.4) in length; plump with slight lateral com- 

 pression; laterally and ventrally dark brown to rufous, shiny black 

 dorsally only; oval from a lateral and dorsal view; sculp tm-ing limited 

 to lower half of segment six or less. Ninth tergum short and broad, 

 averaging .15 mm. (.12-. 17) in length. Internal genitalia with the 

 dorsal valves mediumly narrow for horizontal length or the length of 

 the exposed portion of the ninth tergum is about two-thirds the width 

 of the dorsal valves at their widest point; dorsal and ventral valves 

 turn dorsally, anteriorly, at less than aright angle; stylet arch oblique; 

 whole structiu-e averages 1.6 mm. (1.5-1.7) in length and 1.0 mm. 

 (.09-1.1) in height; thus height averages 62 percent of the length. 

 Tegula dark brown. Propodeum broad; shallowly depressed; wide 

 median fiurow indicated dorsally by lateral carinae for about one-half 

 or less of length; surface of furrow crossed by irregular horizontal 

 ridges; deep pit absent at base of propodeum; lateral areas narrow; 

 dorsal carina fiat across top of furrow. Antenna fihform, with the 

 scape yellowish brown and flagellum dark brown; segments of funicle 

 moniliform, longer than wide; legs with dark-brown to black infusca- 

 tion on all femora; dark brown on middle of mid- and hindtibiae and 

 often on fore tibiae; knees and apices yellow and foretibiae may be also; 

 medial and outer faces of forecoxae may be yellowish brown. Wing 



