THE CANADIAN ENTOMOLOGIST. LAS 
_ venter ; abdominal segments convex above and flat beneath, each one 
divided into three irregular shallow transverse folds, lateral surfaces with 
a double row of smooth polished oval tubercles, most symetrical in form 
and position from segments 4 to 11 inclusive; above the tubercles on 
each segment is a deep depression ; a few fine light hairs are scattered 
over the general surface. Head horizontal, rounded, small—about half 
the diameter of first segment, into which it is somewhat retractile— 
shining, translucent white; mandibles and other mouth parts reddish- 
brown, surrounded by longish hairs. Some of the larvee have from three 
to five fine purplish longitudinal lines on dorsum, the medio-dorsal one 
being most distinct; in others these lines are. wanting. They always 
remain curled up, and moye sluggishly on one side if placed upon a flat 
~ surface. 
The pupa is cream-white in color, 0.12 inch in length, broadly shoul- 
dered with an almost triangular outline; thorax bent forward, beak 
pressed down and extending below wing cases; on top of thorax is a 
shallow depression surrounded with short brown hairs ; abdominal seg- 
ments sharply ridged and roughened with minute hairs, posterior ex- 
tremity terminates in a pair of bristly points, white, tipped with brown. 
The change to pupa takes place inside the larval nest, and the insects 
remain in this state only from five to seven days, the first beetles issuing 
on the 2nd of June. 
The perfect insect is well known: a small, highly polished, black 
curculio with two large orange-red spots at bases of elytra: It has been 
figured by Harris in his ‘‘ Injurious Insects,’ but his description of the 
cases of Attalabus as “ of the size and shape of thimbles,” does not apply 
to this species, nor does he record any observations upon the habits of 
the larvae. 
I have also found the cases of this curculio on the leaves of Red and — 
Post Oak, and recently took a single one, some larger than the others, on 
Hazel. The Laurel Oak, however, seems to have the preference, and the 
cases formed from its leaves are much neater and more symetrical than 
those found on other trees. 
The second brood of larvae may be found early in July. 
AMERICAN ASSOCIATION FOR THE ADVANCEMENT .OF SCIENCE.— The 
Rey. C. J. S. Bethune and Mr. W. Saunders, the President and Vice- 
President of the Entomological Society of Ontario, have left for Dubuque 
to attend the meeting of the Association as representatives of Canadian 
science. | 
