AMERICAN HYMENOPTERA. 77 



Jornada pilosula.— '^ . — Black, immaculate, shining, rather thickly 

 clothed with pale pubescence, finely punctured; head slightly narrower than 

 thorax; eyes large, the front narrowed above, so that the space between the 

 eyes and ocelli is quite narrow; antennae short, slender, flagellum ferruginous, 

 second and third joints short and equal in length; mesothorax finely and 

 sparsely punctured ; scutellum subbilobate; base of raetathorax depressed and 

 polished; wings hyaline, dusky on apical margin; legs tinged with brown, 

 thickly clothed with whitish pubescence, tarsi more or less testaceous; abdo- 

 men short-ovate, polished, the apical margin of the segments fringed with 

 whitish pubescence; venter brown, fringed with pale hairs. Length .40 inch. 



Hah. — New York. One specimen. More pilose than any species 

 known to me, and easily recognized by the color being entirely black, 

 and the surface smooth and shining. 



Xomada SCita. — % . — Black, opaque; head and thorax strongly and con- 

 flueutly punctured, clothed with whitish pubescence; face silvery sericeous; 

 sides of face, clypeus, spot above, labrum, mandibles except tips, antennae 

 beneath, two spots on collar, tubercles and tegulae, yellow; antennae blackish 

 above, except in middle and extreme tip which are pale fulvous, scape very 

 robust cylindrical, third joint about half the length of fourth which is joined 

 obliquely to the third and narrowed at tip, the flagellum crenulated when 

 viewed laterally; scutellum subbilobate, entirely black, a minute pale spot 

 on each side of postscutellum ; wings hyaline, with a dusky spot at tip, third 

 submarginal cell narrowed almost to a point towards marginal; legs pale fer- 

 ruginous or fulvous, most of coxae and trochanters beneath, black; abdomen 

 shining, finely punctured, a narrow interrupted band on first segment, and an 

 continuous band on the following segments, broadly dilated laterally on second, 

 white; venter brown. Length .30 inch.- 



Hub. — Colorado, (Morrison). One specimen. A beautiful little 

 species, with antennae formed like those of articulata Smith. 



Nomada accepta. — 9-— ^''^c'^j opaque; head and thorax coarsely and 

 densely punctured ; orbits, very broad anteriorly, clypeus except base, labrum, 

 mandibles, antennae, collar, four stripes on mesothorax, scutellums, four spots 

 on metathorax, tubercles, most of pleura and tegulae, ferruginous; antennae 

 dusky above, third joint much shorter than fourth; scutellum strongly bilo- 

 bate, shining; wings dusky, with hyaline spot near tip; legs ferruginous, coxte 

 and femora more or less black at base; abdomen shining, closely and minutely 

 punctured, varied with ferruginous, a narrow sinuate subinterrupted band on 

 first segment, a broad band on second segment, narrowed gradually to middle 

 where it is slightly interrupted, a line on each side of third segment and the 

 fifth segment notched on each side posteriorly, all white; posterior margin of 

 third segment broadly ferruginous; venter ferruginous, varied with blackish. 

 Length .30 inch. 



Var. 9. — Abdomen entirely black above except a transverse cuneiform spot 

 on each side of second segment, a spot on each side of third, an interrupted 

 band on the fourth, and a square spot on middle of fifth segment, all white. 

 Length .30 inch. 



%. — Larger and more robust than 9 » black; sides of face narrowly, anterior 

 margin of clypeus, and scape beneath white; labrum, mandibles, flagellum 



