94 
FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
i> stont, moderately dense on the anterior part of the elytra and still denser and scale- 
like on tin* declivity. In the two California D speciesof the same group the pubescence 
consists of long and short hair intermixed. P. querciperda occurs from New York to 
Florida. (Schwarz.) 
41. Monavthrum mali (Fitch). 
Mr. Sohwarg has observed this Scolytid while at work in pieces of 
the red oak at Washington, D. C. It was tirst observed by Fitch at- 
tacking the apple tree in New York. It ranges from Lake Superior to 
Florida. (Le (Jonte.) 
The parent beetle bores through the bark straight into the wood to a distance of 
from 5 to 7 mm . Then follows a transverse gallery and, in most cases, a second trans- 
verse gallery immediately behind the first; in several instances there is still a third 
gallery. The secondary burrows, in which the larva; undergo their transformations, 
and which, in all probability, are made by the larva', start rectangularly upward or 
downward from the transverse galleries and are but little longer than the beetle. 
Oviposition in this species has not yet been observed, and it remains, also, uncertain 
whether ouly one or several beetles have been at work when there are two or three 
transverse galleries present. (Schwarz, Proc. Ent. Soc. Wash., i, 44, 48.) 
Beetle. — In this genus the body is long and cylindrical; the scape cf the antennas 
long and slender; the fuuicle of but one short joint, the others being absorbed in the 
club, which is rounded and very much compressed ; elytra elongate, nearly perpen- 
dicularly declivous behind, and pubescent on the declivity; feebly punctured in 
rows. M. mali is small brown, elytra not hairy at tip. 
Male: Club of antenna? with a long apical spine and a few hairs; declivity of 
elytra oblique, not refuse at the sides, acutely margined only at the apex and for a 
short distance behind; face of declivity with a slight reniform elevation rising into 
two cusps near the suture, which is deeply impressed and excavated at that place; 
head flat, opaque, not fringed with hair. 
Female: Club of antennae without apical spine ; declivity of elytra as in male, but 
with the reniform elevation and its two cusps much stronger ; head slightly convex, 
subopaque, feebly punctured. 
Lake Superior to Florida; depredates on apple trees. Length, 2 mm (.08 inch). 
(Le Conte.) 
42. Ithycerus noveboraceiws (Forster). 
According to Riley this weevil in- 
fests the oak, having been seen bor- 
ing into the twigs of the burr-oak; 
the larva is of the usual eurcnlioni- 
form appearance. The female first 
makes a small longitudinal excava- 
tion with her jaws, eating upward 
toward the end of the branch, then 
turns round and thrusts her egg into 
it. She was observed in the act by- 
Mr. Charles Peabody. (Riley's un- 
published notes.) 
Beetle.- This is our largest species of weevil, 
and may be recognized by its great size, by 
its broad, large snont, its ash color, and by 
the, eight pale lines on the wing-covers, inter- 
rupted by four or five distinct black squarish spots. Length. IS"* 
Fig. 35. Ithycerus noveboracen»is. Smith del. 
