70 PROC. ENT. soc. WASH., VOL. 22, NO. 4, APRIL, 1920 



wide as and longer than the thorax; first tergite longitudinally striate above, 

 pubescent; second tergite with two striated foveae at the base, otherwise 

 not sculptured, shining; third tergite a little shorter than the fourth, both 

 impuinctate but with a row of hairs across them; fifth tergite slightly longer 

 than fourth, longitudinally striate; sixth as long as fifth, shining, not striate. 

 Wings infuscated. 



Male. Essentially the same as the female but with the following differ- 

 ences: Flagellum filiform, hairy; joints 5-9 subequal in length and width, 

 a little longer than wide; fourth joint twice as long as third, emarginate at 

 base; abdomen broadly elliptical; third and fourth tergites subequal in length, 

 the sixth about half as long as either and a little narrower than the fifth; 

 all the tergites beyond the second with a transverse row of punctures. 



Type locality. Forest Grove, Oregon. 

 Type Cat. No. 22799, U. S. N. M. 



Twenty females and nine males reared August 28, 1916, from 

 the clover seed midge (Dasyneura leguminicola Lintner) by G. W. 

 Creel and recorded in the Bureau of Entomology under Webster 

 No. 15000 and Forest Grove No. 16-38K. Nine paratypes re- 

 tained by the author. 



Platygaster feltii, new species. 



This species is most closely allied to alnicola Ashmead and 

 tumidus Ashmead. From the former it may be distinguished by 

 the presence of a broad transverse furrow on the first tergite, and 

 from the latter by the very faint striation on the vertex. 



Female. Length 1.2 mm. Head seen from above broadly transverse, one 

 and one-half times as wide as long as viewed from in front, smooth and shin- 

 ing, impunctate, finely striate on the vertex; lateral ocellar line equal to the 

 ocellocular; antennae, when extended, reaching beyond the apex of the thorax, 

 not distinctly clubbed; pedicel as long as next two joints and a little wider 

 than the fourth, twice as wide as long; third joint slightly longer than wide, 

 shorter and narrower than the fourth; fourth joint as long as sixth though 

 considerably narrower, distinctly longer but no wider than the fifth; seventh, 

 eighth, and ninth joints subequal in length and width, a little longer than 

 wide; last joint longer, subconical, obtusely pointed; thorax smooth, pol- 

 ished, impunctate; mesonotum faintly shagreened on the anterior half; 

 notauli incomplete, traversing the basal half of the mesonotum; scutellum 

 high, convex, nearly perpendicular anteriorly, sloping posteriorly; wings 

 extending slightly beyond the apex of the abdomen; abdomen ovate-spatulate, 

 as wide and as long as the thorax, narrowing gradually anteriorly; first ter- 

 gite longitudinally coarsely striate, with a transverse impression across the 

 middle and elevated anteriorly, less than twice as wide as long; second tergite 

 longer than wide, with a slightly elevated rim across its base and with two 



