COLEOPTERA. 
l 5 l 
fragments of earth. The “ apple-blossom weevil” ( Anthonomus pomorum ) is 
another species which, on account of its injurious habits, deserves some notice. It 
PEAR-BLOSSOM WEEVIL, WITH LARVA AND 
pupa (enlarged). 
N UT-WEEVIL AND ITS LARVA. 
is about a quarter of an inch long, of a 
greyish brown colour, with an oblique 
white band on the elytra, and three 
whitish lines on the thorax. The female 
deposits her eggs in the unopened flower- 
buds of the apple, and the larva by feeding 
on the stamens and pistil causes the bud 
to wither and die. In about fifteen days, 
the larva attains its full size, changing then to a pupa within the bud, and the 
beetle appears about eight days later and escapes through an opening which it 
makes in the side. A closely allied species 
{A. pyri) proves injurious in the same way 
to pear blossoms. The cabbage-gall weevil 
(Ceuthorrhynchus sulcicollis ) and certain species 
of Baridins attack cruciferous plants; the 
larvae of the former live inside galls which 
they raise on the roots of cabbages and turnips, 
while those of Baridius may be found living in 
the lower part of the stem. The grain-weevils, 
which are most numerous in tropical countries, 
are represented in Britain by two almost cosmopolitan species, the corn-weevil 
(Sitophilus granarius), and the rice-weevil (S. oryzce). These are both small 
apple-blossom weevil (nat, size 
and enlarged). 
1, Ceuthorrhynchus sulcicollis ; 2, C. assimilis ; 3, Baridius chloris ; 4, B. cuprirostris. 
(The beetles all enlarged.) 
