494 PROCEEDINGS OF THE NATIONAL MUSEUM vol. us 



an oblique plane; dorsal valves broad for posterior two-thii^ds. 

 Propodeum narrow; deeply concave; median furrow, if present, wide 

 and indicated in upper one-quarter to one-third only; lateral surfaces 

 rougiily pitted and center crossed by fine horizontal nregular carinae; 

 flat carina across top center bends ventrolaterally; shallow rectangular 

 depression at base. Tegula black to dark brown. Antenna with 

 the outer face of scape yellowish brown; whole structure short and 

 stocky; segments truncate on distal ends; first segment longer than 

 wide; two to five almost square; last three closely fused to form a 

 bluntly pointed terminal unit. Legs reddish brown on base of 

 forefemora and reddish brown to black medially on hindfemora; 

 apices yellow; tibiae yellowish brown. Wing veins light yellow and 

 thin; marginal and postmarginal veins usually equal in length; 

 marginal averages .29 mm. (.27-.32) ; postmarginal averages .29 mm. 

 (.25-.35). 



Male: Black. Length averages 3.0 mm. (2.6-3.5). Scape usually 

 with lower half yellowish brown and upper half black or dark brown; 

 antenna with first five segments pedicellate; six and seven closely 

 united; first segment longer than wide and covered with long hairs; 

 two to five shorter, though still slightly longer than wide and each 

 with two whorls of long hairs. Legs with dark brown on all femora 

 and tibiae; knees and apices yellowish brown. Wing veins yellow 

 and marginal and postmarginal veins equal in length, marginal 

 averages .26 mm. (.25-27); postmarginal averages .26 mm. (.25-.30). 



Types: 6 females and 5 males. Holotype female and allotype male 

 in the U.S. National Museum (USNM 66059). Paratypes in Bugbee 

 collection, Meadville, Pa. 



Type locality: Arlington, Tex. Holotype female collected Aug. 6, 

 1908, by F. C. Bishop. Male and female paratypes bred Aug. 14-21, 

 1908. 



Distribution: Its range will probably correspond to that of its host 

 Anthonomus grandis, the cotton-boll weevil, although this study 

 included specimens from Texas, Oklahoma, and Louisiana only. 

 Fenton and Dunnam (1929) record a species determined as E. tyloder- 

 matis, which could be this species, from Florence, S.C., and Pierce, 

 Cushman and Hood (1912) list E. tylodermatis as a cotton-boll weevil 

 parasite from Arkansas, Louisiana, Oklahoma, Texas, and Mexico. 



Host: Parasite of Anthonomus grandis Boheman, the cotton-boll 

 weevil. 



Remarks: This species seems to be close to E. pini in the equal 

 length of the marginal and postmarginal veins, the fine pitting on the 

 surface of segment 6 of the abdomen, which extends as a narrow band 

 over the anterodorsal surface, and the short, stocky antenna with 

 segments 2 to 5 approximately square. 



