250 AMERICAN HYMENOPTERA. 



taperino; to a point behind : ovipositor slightly exserted ; petiole long, rather 

 slender, but little widened at apex, polished and without carina or groove ; legs 

 slender and with claws closely pectinate with long teeth. 



This species resembles the females of Stilpnus in form and ap- 

 pearance. 



One specimen from Hudson Bay, Canada (type, coll. Am. E. S.). 



€TEX01»EL,:»IA Holmgren. 

 (Monographia Tryphonidum Suecise. 117, 1856.) 



Head transverse, vertex emarginate ; clypeus transverse, separated 

 from front, elevated, impressed toward apex; mandibles large, teeth 

 subequal ; antennae long, filiform. Thorax robust, polished ; meta- 

 thorax oval and not prominently areolated. Abdomen elongate, 

 polished, pubescent; first segment slender, widening toward apex 

 and with central longitudinal groove. Wings large, areolet present. 

 Legs rather slender, tarsal claws with long thickset teeth. 



Abdomen with head and thorax black. 



Posterior femora and coxse black priiiiosa n. sp. 



Posterior femora and coxte rufous iiidutata n. sp. 



Abdomen entirely or mostly rufous. 



Head and thorax black iiigricornis Prov. 



Head and thorax rufous saiiguinea Prov. 



C'tenopelnia priniosa n. sp. 



% . — 10 mm. Black, with face, anterior orbital lines, antennse beneath, mouth- 

 parts, cheeks, tegulse. line before, line beneath, spot on anterior mesopleura, pectus, 

 anterior coxpe beneath, four anterior trochanters, base and apex of four anterior 

 tibiae and tarsi, apical segment of posterior trochanter, tibite except apex and 

 basal tarsal segment except apex, white; remainder of legs and the antennse 

 black to dusky; wings hyaline, polished, iridescent; nervures and stigma black; 

 stigma slender, lanceolate, marginal nervure entering at the middle; transverse 

 median nervure interstitial with basal; body shagreened, finely pilose ; clypeus 

 thick, oval, with quite a groove between it and the face ; mesonotum subtrilobed ; 

 metathorax strongly carinate ; two basal segments of abdomen strongly sha- 

 greened . 



One specimen from Texas (type, coll. Amer. Ent. Soc). 



C'tenopelnia indotafa n. sp. 



-Jj J. — 6 mm. Black, with anterior orbital lines, mandibles and palpi in 9, 

 whole face, mouth-parts and cheeks beneath in % , scape beneath, tegula?. spot in 

 front and in % the pectus and anterior coxse, white ; legs rufous, posterior tibise. 

 and tarsi dusky; antennse reddish brown; wings hyaline, brightly iridescent, 

 areolet triangular, subsessile, oblique: humeral cross nervure broken above the 

 middle; general form and sculpture as in primosa. 



One female and two males from Texas (type, coll. U. S. Nat. Mus.). 



Cteiiopelnia nigricoriiis Prov. (Mesoleptiis). Add. Faune Hymen. 99. 

 o . — 9 mm. Black, with abdomen rufous beyond basal portion of segment 2 i 



