212 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
This is evidently distinct from the CaUipterus querent of Kaltenbach, 
which is of a pale ocher color throughout and nearly smooth, and has 
the veins of the wings unmargined. It approaches somewhat closely 
to C. juglandii Fisch., which is found on walnut. In that species the 
markings of the abdomen are almost exacth as in this, but the abdomen 
is much more drawn out and tapering; it is more than probable, how- 
ever, that the shrinkage caused by the alcohol has caused this to pre- 
sent the blunt appearance. (Thomas.) 
299. The "oak blight," or wooly Arms or the oak. 
Schhoneura querei Fitch. 
This species is found in the northern part of Illinois upon oak limbs. 
Fitch says it is very similar to another species found on the bass wood. 
The winged individuals are hlack throughout, slightly dusted over with an ash- 
gray powder. 
The tore wings are clear and transparent ; the stigma is dusky, the rib-veins black, 
and the third discoidal vein with the basal portion abortive nearly or quite to the 
fork. The length to the tip of the wings is (0.1G) a little over one-eighth of an inch. 
(Thomas.) 
300. CaUipterus (?) quercicola Thomas. 
Winged form.— Antenna? about half as long as the body; not mounted on frontal 
tubercles; remote at base: third, fourth, and fifth joints equal in length; transition 
from the sixth to the seventh joint exceedingly gradual; seventh joint about half as 
long as the preceding. Rostrum short, not reaching the second coxa? : apical join t very 
acute. Nectaries reduced to mere openings. Style none. Wings with the veins bor- 
dered with brown. Stigma rather short, and blunt at apex, the cubital vein arisiug 
from its base. Stigmatal vein not so much curved as usual in this genus: not hyaline : 
distance between the base of the cubitus and that of the stigmatal vein equa' to the 
distance between the furcals, and less than the distance between the base of the 
cubitus and that of the second discoidal. Second discoidal not sinuous. Body rather 
elongate. Length, 1.77 mm ; to tip of wings, 2.79 mm . 
It is with considerable doubt that I place this species in the genus 
CaUipterus. It is very probable that it should be placed under Asiph um : 
but the only description of this genus which has been published is that 
given by Koch, and, like the other generic descriptions which were 
made from memory, after the loss of his eye-sight, is somewhat unsat- 
isfactory. The following is a translation of the salient points in his 
description : 
A8iphum Koch. — Beak short. Antenua^ rather short: the tlird, fourth, and fifth 
joints subequal ; the apical joint very small, scarcely perceptible. 
Of this interesting species I have only seen two winged specimens, 
mounted on a slide, which were communicated by a correspondent with 
the information that they occurred at St. Louis, on oak. (Thomas.) 
301. Chaitophorus quereicola Thomas. 
Apterous individuals. — Dorsum greenish, with four rows of short tubercles, all of 
which, except a few in the side rows, are black: their apical circumference with 
from three to five bristles: the two middle rows of tubercles stop at the head, 
