ART. 15\ REVISION OF SUBFAMILY PLAT YG ASTER I XAE FOUTS. 33 



truncated posteriorly; scutellum as in caryae but without the median 

 groove; abdomen ovate, a little longer, but no wider, than the thorax, 

 twice as long as wide, broadly rounded posteriorly; first tergite as in 

 caryae; second not distinctly striate, a little longer than wide: ter- 

 gites three to six polished, united less than half as long as the second; 

 wings hyaline, extending the length of the last four segments past 

 the apex of the abdomen. Coloration as in caryae Ashmead. 



Type locality. — Jacksonville, Florida. 



Type.— C&t. No. 24595, U.S.N.M. 



Redescribed from two female types in the National Museum. One 

 specimen has the abdomen missing. The male described in Ashmead's 

 Monograph represents a different species. It remains undescribed. 



4. PLATYGASTER OBSCURIPENNIS Ashmead. 



Platygaster obscunpennis Ashmead, Bull. 45, U. S. Nat. Mus., 1893, p. 325. 

 Male. — Length 2 mm. Head two and one-half times as wide as 

 long, narrower than the thorax, attached far down on the thorax; 

 cheeks flattened, oblique, strongly shagreened; occiput rugose, tra- 

 versed by large wavy oarinae; vertex subacute, striate; frons shining, 

 aoiculate laterally, striate below, elevated medially into a transverse, 

 broadly rounded ridge as wide as the eyes, this ridge with a deep 

 broad furrow which extends from the anterior ocellus to the stria- 

 tions below; head seen from in front two-thirds as wide as long, the 

 angles rounded; pedicel slightly longer than wide, a little narrower 

 and longer than joint five; joint three triangular, narrower than the 

 pedicel, as wide as long, closely attached to four; four as long as the 

 pedicel, wider than any other joint in the flagellum, as wide as long, 

 strongly excavated below at the base; five as wide as long; joints six 

 to nine slightly wider than long; ten longer than the pedicel, acutely 

 pointed apioally, the sides straight; thorax not quite three-fourths as 

 wide as long, of a A^ery peculiar shape, widest before the tegulae, as 

 long before the tegulae as behind it, very broad and rounded anteri- 

 orly, flattened above, nearly one and one-half times as wide as high, 

 the pronotum bulging out on the sides above; pronotum shagreened 

 laterally; mesonotum shagreened anteriorly and inwardly on the 

 lateral lobes; median lobe narrowly truncated posteriorly; lateral 

 lobes very broad and long, as wide as the median lobe at its middle ; 

 scutellum transverse, flattened, shagreened, sparsely pubescent on 

 the sides, margined laterally; abdomen elliptical, slightly narrower 

 than the thorax, twice as long as wide, as long as the head and 

 thorax united; median area on first tergite quadrate, polished, the 

 ridges sharp, the segment itself twice as wide as long; second tergite 

 as wide as long, slightly narrowed anteriorly, the sides curved; basal 

 foveae deep and broad, finely striate; median area striate; tergites 

 three to seven polished, united three-fourths as long as the second; 



