AMERICAN ITYMENOPTERA. 117 



tlie iiKiVLiina], and receiving the second recurrent nervure at about one- 

 tliird from the base; legs bhxck, robust, tarsi brownish, tibiai not 

 strongly serrated; abdomen subsessile, ovate, subconvex, shining above; 

 firvSt, second and third segments above rufo-testaceous, their apical mar- 

 gins black ; apex clothed with numerous black hairs ; beneath black. 

 Length 9 lines. 



//(/A.— Georgia, (Coll. Am. Ent. 8oc.). 



One 9 specimen. This fine species is easily recognized by the 

 short, stout antennic, by the large violaceous-black wings, and by the 

 coloration of the abdomen. 



71. Pompiius (Priocnemis) nigripes. 



I'oiHiiiliis nif/ripcs, ('resson, Proc. Ent. Soc. Pliil. iv, p. 454, 9- 

 Famalr. — Purplish-browu ; three basal segments of abdomen ferru- 

 ginous, apex piceous; legs and antennoe black; wings fusco-hyaline, 

 with a fuliginous cloud near the tip. Length S.j lines. 

 //(^A.— Colorado Territory, (Coll. Am. Ent. Soc). 

 One 9 specimen. 



72. Pompiius (Priocnemis) alienatus. 



Pompiius fascipennis, Say, Long's 2ncl Exp. ii, p. .33.3, 9 > (nee Van d. Limh). 



Pompiius alienatus, Smith, Brit. Mus. Cat. Ilyra. iii, p. 159. 

 Female. — Black, clothed with a silvery-cinereous pile, most obvious 

 on the face, metathorax and coxae ; apical margin of the clypeus 

 smooth, polished and truncate; mandibles reddish in the middle; an- 

 tennae long, slender, convolute, brownish ; posterior margin of the pro- 

 thorax slightly subangvilar; metathorax smooth and rounded, rather 

 abrupt behind, the sides bright silvery; wings hyaline, with four sub- 

 marginal cells; the extreme tip, a large cloud covering most of the 

 marginal cell, the whole of the second and third submarginal cells, and 

 the tip of the third discoidal cell, fuscous; sometimes the basal series 

 of transverse nervures, which is scarcely dislocated, is margined with 

 fuscous; marginal cell long, lanceolate, acute at tip ; second submar- 

 ginal cell obliquely quadrate, the third much narrowed towards the 

 marginal, receiving the second recurrent nervure at about the middle; 

 posterior wings hyaline, the tip slightly dusky ; legs black, the four 

 anterior tibiae and tarsi more or less varied with rufo-testaceous ; the 

 posterior femora and tibiae red, their tips generally black, their tarsi 

 brownish; tibiae strongly serrated ; the coxae silvery; abdomen short- 

 ovate, subconvex, subsessile, polished, red above and behcath, the three 

 or four apical segments black. Length 3 — il lines. 



I/a/j. — Connecticut, New York, New Jersey, Pennsylvania, West 

 Virginia, (('oil. Am. Ent. Soc. and Mr. E. Norton. j 



