632 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
tibial joints) of the first and second pair of legs, the end scarcely going beyond the 
middle of the body. Elytra with live or six rather deep longitudinal creases. The 
::::\ & 
Fig. 208.— Haltica alni — Marx del. ; a, larva; b, pupa. — Bridgbam del. 
salient points of the body armed with piliferous warts. Abdominal tip square at the 
end, with a stout black spine projecting from each side. Length, 6 mm . 
Beetle. — Uniformly deep prussian blue, with greenish reflections on the head. 
Anrenual ilagelluui with tine whitish pubescence ; tibia? clothed with tawny hairs. 
Length, 5 to b mm . 
19. Attelabus rhois Boheman. 
The singular thimble-like rolls of this weevil may be found in June 
and July on the alder, and also occur on the hazel, according to Le 
Conte. When about to lay her eggs, the female begins to eat a slit 
near the base of the leaf on each side of the midrib, and at right 
angles to it, so that the leaf may be folded together. Before beginning 
to roll up the leaf she gnaws the stem nearly off, 
so that after the roll is made, and has dried for 
perhaps a day, it is easily detached by the wind 
and falls to the ground. When folding the leaf, 
she tightly rolls it up, neatly tucking in the ends, 
until a compact, cylindrical solid mass of vegeta- 
tion is formed. Before the leaf is entirely rolled 
she deposits a single egg, rarely two, in the mid- 
dle next to the midrib, where it lies loosely in a 
little cavity. While all this is going on her consort stands near by, 
and she occasionally runs to him to receive his caresses, to again 
resume her work. These rolls remain on the bushes sometimes for 
several days, but probably drop by the time the larva escapes from 
the egg, and it seems probable that the grub uses the roll for a shelter 
until it matures and is ready to enter on its transformation to a beetle. 
From the time of egg laying to the hatchiugof the larva requires about 
a week. 
Egg. — Nearly spherical, though a little longer than thick, .04 inch long and .03 
in diameter; the chorion is thin, smooth, and very transparent. 
The beetle. — In this species the body is pubescent, the front femora are not toothed. 
Body and limbs dull reddish, with short yellow down. Length about one-fifth inch. 
Fig. 209. -Alder leaf rolled 
by Attelabus rhois x 2 
times.— Marx del. 
