62 ENTOMOLOGICAL SOCIETY 
along the suture, 3 and 5 either uni- or bi-seriately punctulate, humeral and 
subapical callosities well marked, the latter long. 
Ventral surface sparsely foveate-punctate, coarsest on metasternum, 
sparse and finer on first, still finer on second to fourth ventral segments. 
cT. Pygidium truncate, ventral concavity moderately shallow. 
9 . Pygidium a little more narrowed to apex, which is moderately 
rounded. 
Length, 9-11 mm., width, 3.3-3.8 mm. 
Wisconsin (id 1 , coll. Roberts); Maryland (icT, i?, coll. 
Ulke.) 
Type. No. 8228, U. S. National Museum. Mr. Ulke's speci- 
mens are in the Carnegie Museum, Pittsburg, Pa. The Wis- 
consin example has been kindly given to the National Museum 
by Mr. C. H. Roberts. 
In some purely superficial characters there is great resem- 
blance between this species and costipennis, and mllosiventris, 
but the singular construction of the rostrum precludes its 
classification with those species, while the tarsal structure pre- 
vents its being placed in the pertinax group. The third joints 
of all the tarsi are very little wider than the first. The club of the 
antenna is wide, the funicular joints very narrow, and the pedi- 
cel is very wide and rounded. The antennal structure of 
preceding species is radically different, the club and pedicel 
being comparatively smaller and the funicular joints larger, 
thus preventing their being grouped together. 
Sphenophorus robustior, new species. 
Of similar appearance to robustus but still more robust, and shorter, with 
shorter rostrum and less elevated vittae. Black with much gray coating 
above. 
Rostrum three-fourths the length of thorax, strongly subequally com- 
pressed, bent backward in apical third where it gradually enlarges to the 
apex, which bears a small, moderately deep, rounded concavity, posterior 
face at apex subobtuse. Base rather broad, with interocular puncture 
usually not clearly defined. 
Thorax with vittae feebly elevated, somewhat coarsely and densely punc- 
tate; median not attaining base, lateral with lateral branch variable. 
Scutellum smaller than in robustus. Elytra deeply striate, finely punc- 
tate; intervals 3 and 5 wider, remainder subequal in width; i strongly 
elevated, 3 and sometimes 5 slightly elevated and black apically. Inter- 
vals i, 3, 5 and 7 biseriately punctulate except at base, remainder uniseri- 
ately and a little more coarsely and not so closely punctulate. 
cT. Pygidium pentagonal, with pale gold hairs scarcely extending out 
of the punctures. Lateral tufts minute. Lower surface moderately 
coarsely punctate; ventral concavity moderate. 
