38 Trans. Acad. Sci. of St. Louis. 
the distance from the eyes to the neck, then broadly rounded; punc- 
tures moderately coarse, deep, more distinct and perforate than usual, 
‘very sparse throughout, the lateral tumidity feeble; prothorax only 
very slightly longer than wide, distinctly narrower than the head, sub- 
parallel and very feebly arcuate at the sides, moderately coarsely, 
strongly, somewhat closely but irregularly punctate; elytra much 
elongated, two-fifths wider and a third to nearly one-half longer than 
the prothorax, the punctures moderately coarse, rather well separated, 
confused; abdomen distinctly narrower than the elytra, finely, sparsely 
punctulate. Male with the transverse fold of the second ventral long, 
about a sixth or seventh as long as the segmental width, the third 
ventral also with a setose transverse fold but shorter than that of the 
second, the lobe obsolete in specimens at hand; sixth obtusely arcuato- 
truncate at tip; female with a transverse setose fold on the second 
segment ipa dedi median seventh or eighth of the width. Length 
9.3 mm.; width 1.5mm. New York (Long Island), New Jersey and 
North Careline: [= proximum Csy.]...+++-- oooeeeee-parallelum Csy. 
Head closely punctured, at least toward the SsideS.....2 seeeseereececeeee 20 
20 — Third ventral of the male with a short transverse fold. Body moder- 
ately stout, parallel, pale and uniform red-brown in color throughout, 
the legs still paler and rather more flavate; head well developed, about 
as wide as the elytra, the sides parallel and more or less arcuate behind 
the eyes, then more broadly rounded to the neck, the punctures rather 
coarse, separated by scarcely more than their own widths toward the 
middle of the occiput, the lateral tumescent ridge — between the setig- 
erous foveolae —strong; prothorax distinctly elongate, subparallel, 
much narrower than the head, the punctures rather coarse but 
impressed, not very close-set; elytra slightly elongate, much wider and 
longer than the prothorax, coarsely but not very closely punctate, 
the punctures confused, becoming sparser and subserial toward the 
humeral angles; abdomen much narrower than the elytra, finely and 
sparsely punctulate. Male with the transverse fold of the second ventral 
very small, shorter than that of the third ventral, the latter also small 
and occupying about median twelfth of the width, the lobe rounded, 
extending about to the middle of the fourth in the only male at hand and 
occupying median fourth of the width, the sixth ventral broadly 
arcuato-truncate at tip; female with the abdomen wholly unmodified. 
Length 11.0 mm.; width 1.7 mm. Arizona (Clear Creek Cajfion) and 
Colorado (Cafion City), — Mr. H. F. Wickham.....coloradense n. sp. 
Third ventral of the male with a small rounded fovea. Form rather more 
slender than in the preceding, similar in coloration, the sculpture finer 
and much denser; head rather depressed, not quite as wide as the elytra, 
the sides parallel for a short distance behind the eyes, almost evenly 
arcuate thence to the neck, the punctures notably small and close-set, 
the lateral tumidity feeble; prothorax distinctly elongated, sub- 
parallel, much narrower than the head, the punctures rather coarse, 
deep and moderately close-set; elytra longer than wide, more depressed 
than usual, much wider and longer than the prothorax, the punctures 
unusually small but deep and close-set, confused in arrangement, 
sparser and sublinear near the humeri; abdomen slightly narrower than 
