i66 PROC. ENT. soc. WASH., VOL. 21, NO. 7, OCT., 1919 



distinguished from fuscipennis Gahan by the fact that the vertex 

 is not so strongly arched above the top of eyes, the eyes are 

 larger, the flagellar joints are all distinctly longer than broad, 

 the ocelli are much larger, and the propodeum is more rugosely 

 sculptured. It may be separated from all of the species falling 

 under category 21 of the key by the much longer ovipositor. 



Female. -Length 2.5 mm. Head viewed from above more than twice as 

 broad as long; ocelli rather large; ocellocular line about two and one-half 

 times the diameter of an ocellus; vertex and frons polished and rather more 

 than ordinarily hairy, the hairs pale yellowish; face moderately hairy, shin- 

 ing, with conspicuous setigerous punctures, and a broad, low, median 

 ridge; malar space approximately equal to width of mandible; cavity be- 

 tween clypeus and mandibles rather broad and transverse; eyes moderately 

 large, ovate; antennae inserted a little above the middle of eyes, 34-jointed; 

 first flagellar joint about two and one-half times as long as broad; following 

 joints gradually decreasing in length and thickness, those near the apex 

 one and one-half to two times as long as broad; thorax polished, with rather 

 conspicuous pubescence; mesoscutum with a slit-like depression posteriorly, 

 extending from the middle to near the posterior margin; parapsidal grooves 

 deeply impressed anteriorly for about one-third the length of mesoscutum, 

 entirely effaced beyond; transverse suture separating mesoscutum and scu- 

 tellum with about five carinae, the median one more conspicuous than the 

 others; mesopleura smooth with the impression below the middle distinctly 

 crenulate; propodeum coarsely rugose with a distinct, irregular, transverse 

 carina before the middle; stigma of forewing moderately broad, sub triangular ; 

 radial cell long, terminating slightly before the extreme wing-apex; first 

 abscissa of radius slightly shorter than the width of stigma; second abscissa 

 approximately one and one-third times the length of first intercubitus ; third 

 abscissa much longer than the first and second combined; recurrent vein 

 joining the second cubital cell; second cubital cell narrowed apically; first 

 brachial cell closed at apex; abdomen about as long as thorax, elliptical; 

 first tergite strongly bicarinate on the basal half, more weakly so on the 

 apical half, the space between carinae on the apical half elevated and weakly 

 rugulose; laterad of carinae practically smooth; tergites beyond the first 

 smooth and polished, sparsely hairy; ^ovipositor exserted the length of the 

 abdomen, measured from the base apparently nearly as long as head and 

 thorax combined. Color uniformly dark reddish testaceous; eyes and ovi- 

 positor sheaths black; antennae brownish black, the base of scape paler; 

 wings faintly fuscous on basal half, the apical half hyaline, stigma and veins 

 dark brown. 



Male. Essentially like the female but with the vertex, occiput, and thorax 

 very dark reddish, almost piceous. 



Type locality. Cherryfield, Maine. 

 Type. Cat. No. 22375, U. S. Nat. Mus. 



