15 
But when the manure infested with these beetles is put into hills, 
and a few kernels of seed only put into each, they may be able 
to destroy the whole crop. 
“It is recommended, when these beetles are troublesome, to 
soak the seed in water for a short time, and then after pouring- 
off the water to stir in with it a mixture composed of one part 
of Paris green to twenty parts of flour. 1 he reason why we 
recommend flour instead of plaster, or other substances, as a 
diluent, is that flour is attractive as food for the beetles, and 
they will eat the poisonous mixture more readily.” 
Description .—The beetle is from 4 mm. to 6 mm. in length, 
oblong and very convex. Color deep shining black, beneath 
brownish, legs dark reddish brown. The head has three frontal 
tubercles, very distinct in the male, less so in the female. 
Clypeus projecting over and concealing mouth parts, front mar¬ 
gin broadly emarginate at middle, without angulation. Antennae 
nine-jointed, with a three-jointed club. Thorax convex, rather 
finely and sparsely punctured. Wing covers with closely punc¬ 
tured striae, intervals feebly convex and with few minute 
punctures, the first interval broad, a little wider than those ad¬ 
joining, instead of being distinctly narrower, as in other species 
of similar appearance. Tibiae two-spurred, abdomen with six 
free ventral segments. 
Cli vina impressifrons , Lee. 
(Plate II., Fig. 5.) 
This beetle is included among insects injurious to seed corn 
upon the evidence of a single observation made by Mr. F. M. 
Webster in Indiana. It is not uncommon in Illinois, and is found 
from New York and the north Atlantic States to Kansas and 
Kentucky. 
Nothing is known of its earlier stages. Most of our specimens 
are from electric-light and miscellaneous sweep-net collections, 
ranging from May 6 to November 15. 
The only recorded case of injury to vegetation by this beetle 
is reported by Mr. Webster in “insect Life,” Yol. III., p. 159. 
Under date of June 11, 1890, he says, “ I received from Whitley 
county, Indiana, a considerable number of these beetles, with 
the statement that they were found in a piece of ground which 
had been broken the preceding spring, the field being swampy 
and of a black soil, like those infested by wireworms. The 
beetles attacked the seed grains as soon as the latter became 
moistened. When received, one of the beetles had burrowed into 
a kernel of corn in the vicinity of the germ, and was engaged 
in devouring the substance.” 
In all probability this species, like others of the family, is 
essentially carnivorous in its ordinary habits. 
Description .—This beetle is 6 to 7 mm. long, and about one 
fourth as wide. It is rather depressed and elongate, shining 
