94 PEOCEEDINGS OF THE NATIONAL MUSEUM. vol.63. 



finely shagreened; frons mostly polished, unsculptured, faintly acic- 

 ulate below; antennae rather stout; pedicel two and one-half times 

 as long as wide, not much narrower basally, as wide as joint five 

 (which is a little narrower than four) ; three a little longer than wide, 

 narrower than the pedicel; joints six to nine about as wide as long; 

 ten as long as the pedicel, conical, pointed apically; thorax three- 

 fourths as wide as long, convex dorsally; pronotum longitudinally 

 aciculate on the sides; median area unsculptured, the sides curved 

 below, straight above; mesonotum finely shagreened on anterior half, 

 otherwise polished; notauli distinct on posterior half, the median lobe 

 broadly rounded posteriorly; scutellum very high, evenly convex, 

 broadly margined laterally, polished, pubescent on the sides; abdomen 

 a little longer than the head and thorax united, as wide as the thorax 

 four-fifths as v/ide as the head; first tergite twice as wide as long, 

 hardly elevated anteriorly, the median area distinctly transverse, 

 with many closely placed longitudinal oarinae; basal foveae very 

 strongly striate, the striae extending nearly to the apex of the second 

 segment, median area on second tergite elevated anteriorly, with six 

 short longitudinal carinae : terminal segments unsculptured, each trav- 

 ersed by a row of short white hairs; wings hyaline, extending the 

 length of the last four segments past the apex of the abdomen. Black; 

 antennae and most of the legs dark brown to piceous; tarsi and ante- 

 rior tibiae 3'ellowish. 



Type locality. — Jacksonville, Florida. 



Type. — Cat. No. 24612, U.S.N.M. Three paratypes in Collection 

 Fonts. 



Described from ten female specimens from Jacksonville, Florida. 

 These specimens formerly constituted the greater part of the type 

 series of Polygnotus laticeps Ashmead, but they difter specifically from 

 the male, the true type of that species. 



60. PLATYGASTER FELTD Fouts. 



Platygaster feltii Fouts, Proc. Soc, Wash., vol. 22. 1920, p. 70. 



This species was sufficiently well described in the reference men- 

 tioned above. The type series consists of nine specimens from Austin, 

 Texas, reared by Dr. E. P. Felt, March 19, 1919, from the gall of 

 Walshomyia texana Felt on cedar. 

 Type.— Cat. No. 22800, U.S.N.M. 



61. PLATYGASTER TUMIDA (Ashmead). 



Polygnotus tumidus Ashmead, Bull. 45, U. S. Nat. Mus., 1893, p. 310.— Brues, 

 Bull. 22, Conn. Geol. Nat. Hist. Surv., 1916 (1917), p. 538. 



Female. — Length 1.5 mm. Head a little over twice as wide as 

 long, scarcely emarginate behind, in front feebly convex; occiput 

 very strongly and closely transversely striate; cheeks flattened, sha- 



