46 Journal New York Entomological Society. [Voi.iv. 
D. furvus Dej. —Form short, broad, color blackish-opaque, or 
slightly shining. The median thoracic line is feeble, the lateral margins 
slightly reflexed. Elytral intervals alternating, striae smooth. The in¬ 
terval between the sixth and seventh stria bears several punctures near 
the base. Length 15 mm. = .60 in. 
Habitat: Ohio, Kentucky, Missouri, Florida. 
D. crenatus Lee. —The district punctuation of the elytral striae 
will serve to separate this species from its neighbors. I have seen no 
specimens and am unable to give other differential characters. Length 
15-16 mm. — .60-.64 in. 
Habitat: Louisiana, Texas; recorded also from Buffalo, New 
York. 
D. ovalis Lee. —Black, form short, the median thoracic line very 
distinct and deeper near base and apex. Elytral striae deep, smooth, 
intervals not alternating, humeral carina long. Length 15-16 mm. = 
.60-.64 in. 
Habitat: New York, New Jersey, Pennsylvania, Illinois, Mary¬ 
land, District of Columbia, Ohio, Texas. 
D. elongatus Bon. —Form more elongate than in the preceding 
species, thorax with deep and distinct longitudinal median line, two 
deep setigerous punctures anterior to the middle of the prothorax. 
Elytra with deep regular striae, intervals convex, not alternating. 
Length 15-18 mm. — .60-.76 in. 
Habitat: New York, New Jersey, Pennsylvania, Illinois, Indiana, 
Ohio, Maryland, District of Columbia, Texas, Iowa, Louisiana, Mis¬ 
sissippi. 
D, ambiguus Laf. —A large species of black color, either 
opaque or more or less shining. The sides of the thorax are reflexed 
behind, the form elongate. Length 20-22 mm. — .80-.87 in. 
Habitat: New York, Pennsylvania, Illinois, Missouri, District of 
Columbia, Alabama, Mississippi. 
D. dilatatus Say. —Black, dull, or with a slight surface luster. 
Form broad, short, sides of thorax hardly reflexed posteriorly; elytra 
with broad deep striae which are almost smooth except for traces of 
punctures near the tip. Length 20-25 mm - — .80-1.00 in. 
Habitat: New York, New Jersey, Pennsylvania, Ohio, Maryland, 
Indiana, Illinois, Missouri, District of Columbia, Virginia, Alabama, 
Texas. 
