AMERICAN HYMENOPTERA. 159 



Tl. uncinatus, n. sp. 



9- — Robust, (lull black; broad ahnulus on antennae, scutelUini, anterior 

 knees in front, their tibiae, intermediate tibiiB except tips, broad aunulii3 on 

 posterior pair, a dot on each side of apex of 6rst abdominal segment, a band 

 on a|>ex of second and a spot on middle of three apical segments, all white; 

 anteunre short, robust, strongly involute, joints short, the third not twice longer 

 than broad and subeciual with the fourth; scutellum broad, very slightly con- 

 vex, smooth, polished, and impunctured. apex truncate; metathorax obli<iuely 

 truncate behind, slightly excavated, lateral carina prominent and sharp, central 

 area large, quadrate; wings uniformly fuliginous; legs tolerably st^mt, apex of 

 posterior coxie beneath with a brown pubescent patch; abdomen obloug-ovate, 

 closely and deeply punctured on segments two and three, apical segments 

 shining; first segment rather broadly dilated at tip, shining and finely acicu- 

 late, in profile subpyramidal, gastrocoeli moderately large and deep. Length 

 .55 inch. 



Hub. — Canada, (Pettit). A very distinct species, allied to fcralis 

 but larger and move robust. 



72. feralis, Cres.s. Traus, Am. Eat. 8oc. i, p. 301, $ . 



Htib. — Can., N. H., Mass. A rather small robust black specie.s 

 with annulus on antennae, scutellum, band on tibijB, band on apex 

 of second abdominal segment and two spots on tip of abdomen white 

 or' yellowish, wings subliyaline. One specimen from ('anada has a 

 narrow pale band at apex of third abdominal segment. liCugth 9 

 .40— .45 inch. 



73. bizonatus, Cress. Proc. P]nt. Soc. Phil, iii, p. ItjO, 9 . 



Hub. — Colorado. A dull black species, with sides of face, annulus 

 on antenna^ sfutellum, iiw^i of til)iaj and a band uneven postcriorlv, 

 at ba.se of second and third abdominal .segments, yellowish-white; 

 wings fusco-hyaline ; the antenii;e are long and slender. Lerigth 9 

 .50 inch. 



74. texanus, n. sp. 



%. — Small, black, shioing; face, clypeus, spot on mandibles, palpi, orbits, 

 interrupted behind summit of eyes, scape beneath, tegulee, line in front, short 

 line beneath, scutellums, t)*'o spots on posterior face of metathorax, four aa- 

 terior coxae, all the trochanters, four anterior femora in front, their tibise and 

 tarsi, basal two-thirds of posterior tibise, their tarai except tips of joints, apical 

 margin of three basal segments of abdomen and spot on apical segment, yel- 

 lowish-white; the band ou. apex of lirst segment is broad and even, that on 

 second rather broad and strongly sinuate anteriorly, that on third very narrow 

 and subinterru]>t«d medially and dilated laterally; tlagellum slender, entirely 

 black; scutellum convex ; wings clear; abdomen finely punctured, postpetiole 

 punctured, gastrocoeli rather deep. Length .37 inch. 



Hub. — Texas, (Belfrage). A pretty little species. 



