AMERICAN IIYMENOPTERA. 149 



34. subcyaneus, Cress. Proc. Ent. Soc. Phil, iii, p. 148, 9 . 

 j>)ii/(ifHs^ Cress. Proc. Eat. Soc. Phil, iii, p. 14G, % . 



I[„b.— Can., Me., Mass., N. Y., N. J., Pa., Del., Ga., 111., Col., Tex. 

 The abdouien of this species is more or less strongly tinged with blue 

 or purple, and is finely punctured and shining, the postpetiole broad 

 and punctured and the gastrocoeli small and moderately deep. Annu- 

 lus on antennaj and scutellum white; wings subhyaliae. The % has 

 the sides of the face and clypeus, orbits, tegulae, line before, scutellum, 

 dot behind, tips of four anterior femora and line on all the tibiae, white ; 

 the flagellum is entirely black ; the abdomen longer and narrower. 

 Length % 9 .35 — .GO inch. 



35. neutralis, Cress. Proc. Cal. Acad. Nat. Sci. 1877, S . 



Ilab. — California. This has much the appearance of a large speci- 

 men of siihrj/aneiis % , but the scape beneath and the posterior legs 

 are entirely black. Length S .05 inch. 



36. vitalis, n. .sp. 



9- — Black, abdomen tinged with blue and shining at tip; orbits of eyes, 

 dilated towards mouth, lateral angles of clypeus, palpi, annulus on antennae, 

 interrupted beneath, collar, upper margin of prothorax, short line beneath 

 tegulse, two short lines on disc of mesolhorax, large square spot on scutellum, 

 spot on four anterior co.xae and trochanters beneath, extreme tips of their 

 femora and anterior tibiae in front, all white; antennse flattened towards apex, 

 third joint more than twice longer than broad and slightly longer than fourth; 

 scutellum flat, sparsely punctured and' broadly truncate at tip; central area of 

 metathorax transversely semicircular, not well defined; wings clear hyaline; 

 femora robust, posterior coxae beneath nude and finely punctured, tibial spurs 

 whitish; abdomen fusiform, slightly tinged with blue, finely punctured, apical 

 segments smooth and shining; first segment broadly dilated at tip, longitudi- 

 nally aciculate and sparsely punctured; basal middle of segments two and three 

 longitudinally striated; gastrocoeli very large and deep. Length .43 inch. 



Hob. — New York. Allied to subcyaneus but very distinct by 

 the ornamentation of the head and the stronger sculpturing of the 

 abdomen. 



37. mendax, n. sp. 



9. — Black, subopaque, finely punctured; rather broad anterior orbits ex- 

 tending from summit of eyes to a little below antennae, palpi, narrow annulus 

 on antennae, collar, upper margin of prothorax, short line beneath tegulae, 

 square spot on scutellum, tips of anterior femora and their tibiae in front, 

 white; antennae rather stout, with third joint more than twice longer than 

 broad and distinctly longer than fnurtli; scutellum flat, polished, feebly punc- 

 tured, broadly truncate at tip; metathorax coarsely punctured, central area 

 large subquadrate with sides rounded, jiosterior face broadly, not very deeply 

 excavated: wings hyaline; femora rather stout, posterior coxae nude beneath, 

 finely and closely punctured, tibial spurs pale; abdomen fusiform, segments 

 two and three closely and finely punctured, remaining segments indistinctly 



