AKT. 15». REVISION OF SUBFAMILY PLAT YGASTERINAE FOUTS. 131 



hind, not reaching ocross the fovea; scutellum broad and depressed, 

 the tubercle scarcely visible ; abdomen about as long as the head and 

 thorax united, convex above and below, four-sevenths times as wide 

 as long, widest near the apex of the second tergite, from which part 

 it diminishes rapidly to a point; second tergite a fifth longer than 

 wide, not sculptured at all; tergites three to six also polished, the 

 last nearly as long as the three preceding, much wider than long; 

 wings hyaline, without a marginal fringe, extending but little beyond 

 the apex of the abdomen. Shining black; antennae and legs mostly 

 rufous; antennal club, coxae, and middle and hind femora, dark 

 brown or piceous. 



Type locality. — Jacksonville, Florida. 



Type.— C?ii. No. 25463, U.S.N.M. 



In writing the foregoing description I have examined the two female 

 types in the National Museum. I found no males in the collection, 

 a matter which is of small importance since this sex was not men- 

 tioned in the original description. 



The absence of any appreciable spine might keep the species out 

 of Lejytacis, as limited by the older classification, but the general shape 

 of the scutellum and the absence of foveae on the second tergite are 

 typical of the genus as I understand it. 



20, LEPTACIS INERMIS (Ashmead). 



Plate 1, fig. 15. • 

 Synopeas inermis Ashmead, Bull. No. 1, Col. Biol. Assoc, 1890, p. 10, female. — 

 Ashmead, Bull. 45, U. S.Nat. Mus., 1893, p. 287. 



Female. — Length 1.5 mm. Body unusually long and slender for a 

 species of this genus; head wider than the thorax, less than twice as 

 wide as long, entirely finely shagreened; vertex not separated by a 

 carina from the occiput, the latter faintly rugulose; antennae long 

 and slender, as long as the abdomen, finely pubescent; thorax as wide 

 as high, a little over three-fifths as wide as long, somewhat flattened 

 above; notauli delicately indicated on posterior half of mesonotum, 

 widely separated before the scutellum, the space between them form- 

 ing a broad short lobe projecting partly over the scutellar fovea; 

 scutellum rather broad, polished, sparsely pubescent on the sides, 

 with an inconspicuous tubercle apically; abdomen long, elliptical 

 when seen from above, convex above and below, one-fifth of its entire 

 length longer than the head and thorax united; abdomen polished, 

 pubescent only on the first and sixth segments; second tergite three- 

 fourths as wide as long; following segments about equal, the sixth 

 conical, a little longer than wide; wings hyaline, reaching far beyond 

 the apex of the abdomen, with long marginal cilia. Black; scape at 

 base, and legs entirely, stramineous; antenna brown, the club piceous, 



Tyj)c^ locality. — West Cliff, Colorado. 



Type.—Csit. No. 25464, U.S.N.M, 



