288 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION 
tergal portion, which is sparsely covered with hairs, the latter thicker along the 
sides of the body. The body contracts in width behind the fourth abdominal seg- 
ment; the upper side of each of the tirst six abdominal segments (corresponding to 
those segments in the beetle) is raised into blister-like swelling, especially on the 
tilth and sixth segments, which are much narrower than the four preceding segments. 
These dorsal swellings are smooth and free from fine hairs. Abdominal segments 
seven to nine convex above, not swollen, and the abdomen is narrowest between the 
fifth and sixth segments. A pair of large spiracles on the mesothoracic segment, and 
a pail on each of the first eight abdomiual segments. 
Antennae three-jointed ; the two basal joints beiug of the same length; the basal 
oue beiug one-third stouter than the second ; the third joint filiform, and one-half as 
long as the second joint, and ending in two or three hairs. The thin membranous 
labrum is divided into two parts, the basal solid, the terminal portion forming a 
movable flap, overlapping and reaching nearly to the end of the mandibles when 
olosed ; the basal portion is shorter than broad, being broadly trapezoidal and 
smooth ; the outer division is broader than long, the edges beiug rounded so that it 
is almost broadly ovate (transversely) aud smooth, covered with long hairs. It is 
pale membranous with a testaceous hue. Mandibles black, very thick aud stout, with 
obtuse, rounded edges; they are almost as long as the base is broad. Maxilhe mem 
branous, flattened, maxillary palpi two-jointed. Labium membranous, with a trans- 
verse chitinou8 band near the insertion of the two jointed palpi; both joints short; 
secoud one-half as thick as the first ; edge hairy, the hairs reaching to the ends of 
the palpi. Length of body .50 inch ; breadth of prothoracic segment, 4.2 mra ; 
breadth of head, 3.2 mm . 
8. Steno82)henu8 notatus (Olivier). 
This beetle is allied to Cylleue, bat the punctures are sparse aud 
coarse, the pubescence scauty, and the body is slenderer. It is said 
by Riley (Ainer. Eut., iii, 239) to have been cut from hickory wood in 
March. 
The beetle. — Head small, narrow, with the front short and nearly vertical. It dif- 
fers from Cyllene picta in the elytra being truncated at the tip and ending in two 
spines. The thorax is rounded without spines or tubercles. The female antenn® are 
-about as long as the body ; those of the male longer; the legs are rather short. 
9. The hickory-twig girdler. 
0ncidere8 cingitlatus (Say). 
Order Coleoptera; family Cerambycid.e. 
Girdling and occasionally cutting off the twigs and branches, a thick-bodied long- 
icorn, dark gray beetle 0.60 inch long, with its wing-covers sprinkled over with 
faint tawny yellow dots. 
This singular beetle, which inhabits the eastern United States, 
appears in Pennsylvania from the middle of August until the middle 
of September. Fig. 113 represents the beetle and the incision it 
makes, and Fig. 114, from a drawing sent us by the late Professor 
Haldeman, shows how the beetle may injure several adjoining twigs. 
The editors of the American Entomologist (I, p. 76) state that they 
have counted in a persimmon branch, not more than two feet long, as 
many as eight eggs, placed one under each successive side-shoot, 
while they have fouud seven eggs all crowded together in a 
