1(52 Annals Entomological Society of America [Vol. X, 



Eumenes crassicornis new species. 



Male. — Length, 11.5 mm.; wing, 9 mm. Clypeus very wide for a 

 male, as wide as long, apical emargination angular, basal margin 

 slightly incurved, punctation medium; antennae comparatively short 

 and stout, reaching back to tegulge; thorax stout, truncate in front, 

 sides of pro thorax from anterior margin to tegulae' concave; furrow 

 of the propodeum wide and deep; petiole only twice as long as wide, 

 much the widest at the apex with no distinct contraction before it, 

 comparatively flat, punctations medium; second segment of the gaster 

 as wide as long, convex dorsally, dorsal angle abrupt, dorsal line strongly 

 recurved apically, transverse depression before the apex extending to 

 the sides, punctations fine and of medium density. Black; a wide 

 median, longitudinal band covering two-thirds of the surface of the 

 clypeus, a dot between the antennaD, a fine post-ocular line, anterior 

 margin of the pro thorax, posterior margin of the tegulse, a line on the 

 posterior of the metanotum, a very small dot on either side of the first 

 and second segments of the gaster, dorsal apical margin of the segments 

 of the gaster one to four, and the ventral margin of the second segment, 

 a longitudinal band on the anterior tibios, ends of femora and all of 

 tibiae of middle and posterior legs, yellow; hook of antennae, tegulae, 

 tarsi and wings, brown. Grayish pile, tinged with golden, long and 

 dense on the head and thorax, shorter on the petiole and fine on the 

 second segment of the gaster. 



Coldstream, British Columbia, Dominion of Canada, 

 Described from one male specimen. The National Museum 

 has also one specimen from Seattle, Wash. 



Type.— Cat. No. 21384, U. S. National Museum. 



This species is the most nearly black of any known to the 

 writer within the geographical limits prescribed by this paper. 

 It is the only male with black on the clypeus, and the only 

 species besides pachygaster lacking the yellow ridge between the 

 antennae and the line on the scape, while the dots on the sides 

 of the second segment of the gaster are so obscure that they 

 might readily be missed altogether. 



Eumenes pachygaster new species. 



Female. — Length, 11.5 mm.; wing, 9 mm. Clypeus as long as 

 wide, apical margin nearly truncate, with slightly rounded emargination, 

 punctations of inedium depth and sparse; antennas comparatively short 

 and stout, reaching back about to the tegulae; thorax truncate in front, 

 sides convex, but contracted immediately before the tegulse; furrow of 

 the propodeum not deep; petiole short, less than twice as long as wide 

 at the apex, campanulate with distinct contraction before the apex, 

 l)unctation of medium depth and distribution extending to the ventral 

 margins of the tcrgite; second segment of the gaster almost cubical, 



