324 BULLETIN 15, UNITED STATES NATIONAL MUSEUM. 



In the S the antenna'- are always pale, the club very slightly darker; 

 the second funiclar joint elongated, somewhat thickened and truncate 

 at tip, the first only a little longer than thick; the club-joiuts close, not 

 loosely Joined, a Utile longer than thick. 



Habitat, — Jacksonville, Fla. ; ]>istrict of Cohiiubia, and St. Louis, 

 Mo. 



Types in Coll. Ashniead and iSTational Museum. 



The species is a common i)arasite of Cecidomyiid galls on hickory 

 trees. 



Platygaster floridensis AsLiu. 



(I'l. xiii, Fig. S, 9.) 



Cau. Eut., XIX. i>. l',i'2, 9.; Cr. Syu. llyiii., p. 250. 



S 9 . Length, 1 to 1.5""". Polished, black; head transverse, as wide 

 as the thorax, the vertex i)osteriorly aciculated, the face smooth, highly 

 polished; mandibles yellowish. AnteuutelO-jointed; in S pale brown- 

 ish-yellow, tlie pedicel as long as the second funiclar joint, the first very 

 small, closely joined to the second, the second swollen, slightly curved, 

 truncate at tip, club G-jointed, the joints, excejjt the last, submoniliform, 

 the last cone-shaped, twice as long as the preceding. Thorax ovoid, 

 smooth, the parapsidal furrows only slightly indicated; scutellum con- 

 vex, slightly i^ubescent; metapleura sericeous; teguhe iiiceous. \Yiugs 

 hyaline, pubescent. Legs pale brownish-yellow, the hind coxjp. piceous 

 or fuscous. Abdomen oval, not hmger than the thorax, the petiole 

 roughened, pubescent. lu the $ the abdomen is a little longer, more 

 pointed; the antennae, except the club, yellow, club dark brown, G- 

 jointed, moniliform, the last joint fusiform; the i>edicel is about as long 

 as the first funichir joint, but thicker; funiclar joints cylindrical, the 

 first more than twice as long as thick, the second very much length- 

 ened; legs yellowish, the hind cox.e and femora and tibite toward tips 

 fuscous or blackish. 



Habitat. — Jacksonville, Fla. 



Types in Coll. Ashmead. 



Platygaster Herrickii Pack. 



Third Rep. U. S. Eut. Comm., p. 220; Riley, Proe. U. S. Nat. Mus., vni, p. 420, 

 PI. XXIII., Fig. 6, (? ; Asbm., Cau. Ent., xix, p. 132; Cress. Syn. Hym., p. 250. 

 Aneurhynchusaneurus Prov. Add. p. 176, J . 



$ 2. Length 1.50 to 1.80"'", Black, shining, finely punctate, or 

 microscopically shagreened ; head transverse, punctate, the face more 

 finely punctate; mandibles rufous. Anteunte 10-jointed, black; pedicel 

 as long as the first two funiclar joints together; the first funiclar joint 

 subtriangular, small, the second thicker and as long as the longest 

 club joint; club G-jointed, the joints, except the last, very nearly equal 

 in length, the first slightly the narrowest, less tlian twice as long as 

 thick, and truncate at tip, the last cone-shapedj narrower and slightly 



