262 PROCEEDINGS OF THE NATIONAL, MUSEUM vol.88 



Female: 6-7.5 mm. Apex of antennal scape just reaching level 

 of posterior ocelli, flagellar segments stout ; scrobe cavity deep, mar- 

 gins carinate on ventral half; frons punctate laterally, glabrous or 

 very faintly shagreened mesally ventrad of antennal bases, lateral 

 carinae present parallel with anterior margins of compound eyes; 

 interantennal projection carinate ; frontal tentorial pits located dorso- 

 laterad of antennal bases; width of malar space one-third height of 

 compound eye; frontogenal suture straight or very slightly curved; 

 left mandible with two acute teeth, right with three ; combined widths 

 of compound eyes equal to interocular space at level of antennal 

 bases. 



Dorsum of thorax thickly covered with large punctures, pubescence 

 short, white or yellow; entire anterior dorsal margin of pronotum 

 carinate ; prepectus extending to tegula ; apex of mesoscutellum with 

 a narrow, mesally depressed lamina; mesotibia with distinct apical 

 spur; metepisternum punctate anteriorly, glabrous near posterior 

 margin, outer dorsal surface of metacoxa slightly flattened, glabrous ; 

 outer surface of metafemur glabrous, setae short, sparse, outer ventral 

 margin provided with seven to ten irregular teeth, four or five of 

 which are long, slender, and slightly curved (fig. 11, h) ; inner tooth 

 minute or lacking. 



Propodeum covered with confused carinae, spaces between carinae 

 glabrous, spiracular openings vertical, much wider at top than at 

 bottom ; petiole glabrous, twice as long as wide, basal flange wide on 

 dorsal and ventral sides and narrow laterad, lateral carinae usually 

 present; gaster slightly longer than metafemur; eighth abdominal 

 tergite minutely pitted, sparsely setose; cerci oval or almost round, 

 located near posterior margin of epipygium; hypopygium exserted, 

 apex not isolated from eighth tergite (fig. 13, _;). 



Male: 4.5-6 mm. Width of malar space one-quarter height of 

 compound eye; combined widths of compound eyes slightly greater 

 than width of interocular space at level of antennal bases ; inner tooth 

 of metafemur generally wanting, occasionally faintly indicated; 

 petiole two and one-half to three times as long as wide, lateral carinae 

 obscure or wanting. 



Type locality. — Indiana. 



Types. — Neotype, female, Arlington, Tex., September 4, 1905, ex 

 Strymon cecrops., F. C. Bishopp, deposited in the TJ. S. National 

 Museum. Synonyms: montana Ashmead, U.S.N.M. No. 41397; 

 mhmeadi Cameron, British Museum. 



The type of montana Ashmead differs from what I take for this 

 species only in lacking the anteromesal yellow spot on the meso- 

 praescutum, but such a character is never of specific worth in this 

 group; ashmeadi Cameron differs neither in color nor in structure 

 from this species. 



