ART. 15". EEVISION OF SUBFAMILY PLATYGASTERINAE FOUTS. 59 



from the scutellum by a deep furrow, without notauli; soutellum 

 transverse, very highly convex, unsculptured, subacute at top, the 

 posterior face encroaching upon the anterior, with a distinct, though 

 shallow and broad, longitudinal grove down the center; metapleurae, 

 propodeum, and first sternite sparsely covered with moderately long 

 greyish hair; abdomen as long as the thorax, slightly narrower, about 

 twice as long as wide, spatulate, subacute at tip, short behind the 

 second segment; first tergite about three times as wide as long, 

 hairless; median area as wide as long, traversed longitudinally by a 

 few carinae; dorso-lateral carinae on first tergite obsolescent; second 

 tergite a little wider at apex than long, narrower basally, the sides 

 near apex curved; basal foveae deep and broad, finely striate, the 

 striae extending to the middle of the segment; area between the 

 foveae with a few carinae; segments three to six inclusive united 

 three-fourths as long as the second, abruptly narrowing to apex; 

 tergites three, four, and five equal in length; six longer, nearly twice 

 as wide as long, triangular in outline, subacute at tip : wings hyaline, 

 extending the length of the last three tergites past the apex of the 

 abdomen. Dark amber colored, the appendages uniformly brown, 



Male. — Length 1 mm. Antennae stout; pedicel one and one-half 

 times as long as wide, widest at middle; third joint very narrow, as 

 wide as long; fourth a little shorter than second, wider apically than 

 second, its apex produced outwardly, seen from abo ^e twice as wide 

 as at base; joint five subequal in length and width to the fourth; five 

 to nine equally wide, a little longer than wide, as long as the pedicel; 

 ten as long as three and four united, as wide as but longer than the 

 pedicel, conic-ovate; abdomen short, broad, less than twice as long 

 as wide; wings extending a little over half the length of the abdomen 

 past its apex. Legs sometimes touched wdth yellow. 



Type locality. — New Brunswick, New Jersey. 



Other localities. — District of Columbia, Montana, Massachusetts, 

 North Carolina. 



Type.— Csit. No. 2282, U.S.N.M. Type selected. 



Redescribed from the type series, four females, in the United States 

 National Museum. My description of the male is based on specimens 

 in the type series of pinicola Ashmead. The types were reared Feb- 

 ruary 12, 1891, by Prof. J. B. Smith from a Cecidomyid, Diplosis, 

 species, found on pine. The types (Cat. No. 2283, U.S.N.M.) of 

 pinicola Ashmead were reared, May 14 1879, from Cecidomyia pini- 

 inopsis Osten Sacken, found on pine needles. I have examined two 

 series of this species from the Division of Forest Insects, Bureau of 

 Entomology, and recorded under the numbers, "Hopk. U. S. llOSOo 

 qjid 9910i.." The former series consists of seven specimens from Mis- 

 soula, Montana, reared by D. T. Harvey, November 8, 1915, from a 

 (!Iedidomyid found on Picea engehnanni. There is also under this 



