102 BULLF/riN -15, UNITED STATES NATIONAL MUSEUM. 



Two specimens, both captviitMl by Mr. E. A. St-hwar/. The species 

 comes nearest to .1. melaleucns, but shows more white, has a diftereiic 

 shaped clypeiis and with the joints of tlie antennae relatively different. 



Aphelopiis affinis, .s]i. nov. 



9 . Length, 2.2""". Black, shininj]^-; head and thorax very minntely 

 punctate, metathorax rugulose; face from the frons, including' the clyp- 

 eus and mandibles, ferruginous; clypeus anteriorly rounded; anteinne 

 brown; legs (except the posterior tibia;, which are fuscous), entirely 

 honey-yellow. Auteunie lO-jointed, a little thickened toward tips, the 

 scai)e not longer than the first flagelUir joint, flagellar joints 1 to 3 

 about three times as long as thick, the following to the last about twice 

 as long as thick, the last much longer and thicker than any of the 

 others. Wings hyaline, the stigma and stigmal vein brown, the other 

 uervures hyaline, subobsolete; the stigmal vein is arcuate and a little 

 longer than the stigma. Abdomen as long as the thorax, strongly 

 compressed. 



Habitat. — Canada. 



Type 9 in Coll. Aslimead. 



Described from a single specimen. 



Subfamily lY.— CERAPHROI^INiE. 



Head transverse, when viewed from in front oval, rounded, or oblong. 

 Ocelli 3 in a triangle, rarely wanting. ^Mandibles oblong, bidentate at 

 tips. Auteun;ie elbowed, inserted at base of th^ clypeus; in males 11- 

 jointed (in a single case lO-jointed), filiform, dentate or subramose; in 

 females 0-, 10-, or 11-jointed, filiform or clavate. Maxillary palpi 4- 

 or 5- jointed; labial palpi 2- or S-joiuted. Pronotum short, visible from 

 above only as a transverse line; mesonotum large, transverse, rarely 

 without grooved lines, usually with 1, 2, or ."> grooved lines; scutellum 

 large, convex or subconvex, the axilhe distinct; metathorax very short, 

 rounded behind, the angles slightly prominent. Front wings with a 

 large stigmated, or linear, marginal vein, a radial nervure, a more or 

 less distinct basal cell, and always without a postmarginal nervure; 

 hind wings simple, rather broad at base, and entirely veinless. Apterous 

 forms frequent. Abdomen subsessile, ovate, coiuposed of 8 segments, 

 the second occupying about half its surface, striated at base. Legs 

 moderate, the posterior femora the stoutest, the tibial spurs 1, 1, 1, 

 the anterior spur large, divided into two prongs, the middle and 

 posterior spurs weak, short; tarsi o-jointed, the claws snuill, simple. 



A somewhat extensive and widely distributed grouj), more closely 

 allied to the three preceding subfamilies than to those that follow, 

 excei)t possibly the tribe Telenomini, in tlie Scelioninse, but with quite 

 a different habitus; the hind wings are never h)bed, the anterior wings 

 with a wholly different venation, while the structure of the thorax and 



