55l_ ) FIFTH KKPORT OF THE ENTOMOLOGICAL COMMISSION. 
/ontal projeotioo of the trout part of the thorax, and the lower curving upward from 
the crown ot* tin- head. Beneath the color is black, while the thorax and wing-covers 
are of a pale olive-brown, the latter 
dotted irregularly with black spot-- ot 
various sizes, of which some of the 
largest arc oeellated. The legs are 
sliining black, and are armed with 
horns and spines. 
The grub which produces the beetle 
fortunately is not to be numbered 
among our insect pests, as it only at 
tacks, so far as my knowledge of its 
habits extends, decaying trees. It is 
of not infrequent occurrence in the 
State from which these examples were 
sent, and in other Southern States. It 
is rarely met with in Pennsylvania, 
and has never, I believe, been found 
^ in the State of New York. Dr. Fitch 
includes the species amoug those affect- 
ing the cherry tree. The beetles feed 
upon the leaves of various trees, to 
which from their voraciousness, when 
Fig. 185. -Dynastes tit yus.— After Riley. , , 
numerous, they prove very destruc- 
tive. When they attack our shade and ornamental trees their ravages may be 
checked by applications of Paris green or London purple to the leaves by a force 
pump, or by jarring them from the branches and destroying them when they fall. 
23. Thi/sanocnemis fraxini Le Conte. 
Order Coleoptera ; family Curculionid-E. 
All that we know of the habits of this weevil is Dr. Le Conte's remark : 
" Several females collected by Mr. Pettit on ash trees in Canada." 
(Rhyuchophora, 214) He states that Thysanocnemis is u a singular 
genus somewhat resembling Anthonomus in appearance, but known at 
once by the front tibia? of the male being broader than usual, sinuate, 
and densely fringed on the inner side with long hair.'' He describes the 
species as follows : 
Btttle. — Ferruginous, clothed with yellow hair. Beak finely punctured, obso- 
letely striate. Prothorax densely punctured. Elytra with punctured stria?, and 
slightly convex, nearly smooth interspaces: with a broad trausverse band occupying 
the middle third, and dilated at the margin, less densely pubescent, and of a darker 
color. Length, 3.7 mm (.15 inch). 
24. The ash gali.-louse. 
Pemphigus fraxini/oUi Thomas. 
Order Hemiptera: family Ariinu:. 
Dr. Bundy, from whom the specimens were obtained, says Professor 
Thomas in his third annual report. 187 ( J. p. 140, furnishes the following 
note in reference to them, made at the time they were discovered : 
On ash, June, Sauk City, Wis. On the under surface of much deformed, crumpled 
leaves. Female : abdomen dirty green, somewhat darker at the base, sprinkled with 
