136 BULLETIN 15, UNITED STATIK NATIONAL MUSEUM. 



times as large as the penultimate, the two preceding; joints transverse, 

 the others a little longer than wide, the first flagellar joint being scarcely 

 as long as the pedicel. Thorax convex, without a trace of a furrow. 

 Wings hyaline, pubescent, the parastigma as long and thick as the 

 marginal vein, the stigmal vein very little longer than the marginal. 

 Abdomen not longer than the thorax. 



Habitat, — Manhattan, Kans. 



Types in Kansas State Agricultural College and Coll. Ashmead. 



Described from two specimens received from Prof. Popenoe. 



NEOCERAPHRON Asbiii., jren. nov. 



Agrees in all particulars with Centphron^ excej)t that the antenna' in the 

 male are 10-jointed, not 11-joiuted, and in female 9-jointed, not lO-jointed, 

 the flagellum being strongly clavate. 



Neoceraphon niacroneurus, Asbm. 

 (PI. vn,Fig.3, S.) 

 Cerapliron macroneurus Ashm., Ent. Am., iii, p. 97, <? ; Cre.ss. Syii. Hyra., p. 312. 



$. Length, 0.8'"'". Polished black, impuucGured; abdomen yellow, 

 blackish above towards apex; legs yellowish-white; antennae lO-jointed, 

 filiform, reaching to the base of the abdomen, dark-brown, the scape 

 brownish-yellow, the flagellar joints, except the first and last, not 

 longer than wide, loosely joined, moniliform, pubescent, the last joint 

 twice as long as the first. Wings hyaline, the marginal vein linear, 

 the stigmal vein very long, curved, almost attaining the apex of wing, 

 forming a large marginal cell. 



9 . Length, 0.75 """. Black, polished, impuuctured, the abdomen 

 lioney-yellow, blackish above; legs whitish; antenna? 9-jointed, brown- 

 ish-yellow, fuscous toward tips, the flagellum much incrassated towards 

 apex, all the joints, except the first, wliich is as long as thick, are 

 wdder than long, the last large, fusiform. 



Habitat. — Jacksonville, Fla., and Virginia. 



Types in Coll. Ashmead. 



Subfamily V.— SCELIONINyE. 



Head transverse or quadrate, often xoxy broad and large. Ocelli 3, 

 always present. Mandibles most frequently bidentate, although occa- 

 sionlly 3-dentate. Antenna^ elbowed, inserted on a clj^ieal prominence 

 or at the base of the clypeus, usually clavate, 11- or 12-joiuted in the 

 females, or if the club is unjointed, but 7-jointed; in the males filiform 

 or setaceous, 12-jointed except in Scelio, where they are but 10-jointed. 

 Maxillary palpi 2, 3, 4, or 5-jointed, labial i)alpi 2- or 3- jointed. The 

 pronotum is often not visible from above, or it is large, transverse, or 

 quadrate; mesonotum generally short, transverse, with or without 

 groov(id furrows; scutellum generally semicircular, the axilhe not dis- 

 tinctly separated; it is rarely spincd or wanting, although the jjost- 



