324 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



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

 the second funiclar joint elongated, somevrlat thickened and truncate 

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

 loosely joined, a litvle longer than thick. 



Habitat. — Jacksonville, Fla.; District of Colund)ia, and St. Louis, 

 Mo. 



Types in Coll. Ashincad and Njitional Museum. 



The species is a common parasite «)f Cecidomyiid galls on hickory 

 trees. 



Platygaster floridensis Asbiu. 



(PI. xin, Fi- .3, 9 .) 



Cau. Eut., XIX, i>. 132, $ . ; Cr. Syn. Hyni., p. 250. 



$ ? . Length, 1 to 1.5™'". Polished, black; liead transverse, as wide 

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

 polished; mandibles yellowish. Antennai 10-jointed ; in $ pale brown- 

 ish-yellow, the 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 C-jointed, the joints, except 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 pubescent ; metapleura sericeous ; tegulae piceous. Wings 

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

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

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

 pointed ; the antennte, except the club, yellow, club dark brown, 6- 

 jointed, moniliform, the last joint fusiform; the pedicel is about as long 

 as the first funiclar 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 coxie and femora and tibia? toward tips 

 fuscous or blackish. 



Habitat. — Jacksonville, Fla. 



Types in Coll. Ashmead. 



Platygaster Herrickii Pack. '^."' -' 



Third Rep. U. S. Ent. Comm., p. 220; Riley, Proc. U. S. Nat. Mus., viii, p. 420, 

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



Aneurhynchus aneitrus Prov. Add. p. 176, <? . 



S ?. Length 1.50 to 1.80""". Black, shining, finely punctate, or 

 microscopically shagreened ; head transverse, punctate, the face more 

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

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

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

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

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

 thick, and truncate at tip, the last cone shaped, narrower and slightly 



