526 
ANNUAL REPORT OF NEW-YORK 
writer, who is aiming to appear very erudite upon a theme on 
which he unwittingly betrays himself to be very ignorant. 
Another species of Micropus, named falicus by Mr. Say, who 
discovered it in Missouri, I found common in northern Illinois 
in October, and I have also met with specimens of it in New 
Jersey in the month of May, though it has not yet occurred to 
my notice in the State of New-York. Whether it partakes of 
the injurious habits of the chinch bug I know not. It may be 
called the Black-veined Micropus, its wing-covers being dull 
white with black longitudinal stripes, following the veins to 
their tips. It is longer and also narrower than the chinch bug, 
being of a long linear form, 0.20 in length by scarcely 0.05 in 
width. It is black with the base of the thorax and the legs 
yellow. 
The Black-veined Micropcs lias the base of the thorax elevated and smooth, 
forward of which is a transverse wide shallow depression, and forward of this is a 
slight elevation with a short wide longitudinal impression in its middle. The wing 
covers and wings reach only to the anterior edge of the last segment of the abdo¬ 
men, and are frequently shorter with the wings wanting or merely rudimentary. 
Its pupa is dull yellow, except the antennae, which are black, with short fine 
hairs, and are rather shorter and more thick than in the mature insect. Along the 
back it often shows two rows of black punctures, one situated upon each side of the 
middle of each segment. 
Another insect which may frequently be met with upon the 
same flowers and leaves with the chinch bug, in Illinois and 
Wisconsin, from the fore part of July until the close of the sea¬ 
son, so exactly resembles this culprit that no one would suspect 
its being different unless apprised of the fact. Indeed it is only 
by a very close inspection that the one can be distinguished 
from the other. In one instance this has been sent me as the 
chinch bug; my correspondent, as I suppose, on finishing his 
communication, happening to meet with this, immediately in¬ 
closed it in his letter, without a suspicion that it could be any¬ 
thing else than the insect of which he had been writing. It 
however is but little more than half the size of the chinch bug, 
is destitute of hairs, its surface being smooth and shining, and the 
thin membranous posterior part of the wing covers are without 
any distinctly traced veins. Though belonging to the same 
family it pertains to a different genus, named from the circum- 
