SITOPHILUS GRANARIUS. 53 
legless, and white; the head chestnut-colour; jaws also chestnut, 
darker at the extremity, bluntly pointed, and waved into two blunt 
teeth (see fig. 3). The segment behind the head and the caudal 
extremity with a few small bristles. ‘The movements of the larvee 
during life and their contorted form after death make it difficult 
to sketch them satisfactorily, but fig. 1 represents a specimen 
fairly with the numerous corrugations which confuse the primary 
segments with the lesser folds, the under side being a complete 
mass of almost scale-like corrugations. 
A few pupee were now observable (on March 9th), but only two 
Specimens were as fully developed as the one sketched at fig. 2, 
and on the 11th April the larve were active when disturbed in 
their grains, but no more pupx were produced. 
On the 8rd June I found only two more beetles, and on 
examining the grains of wheat I found one grain in ten with a 
tenant in some stage of development, for the most part still only 
in larval form and often stunted. A few grains contained 
specimens of the weevil in its perfect form, but for the most part 
they were small, distorted, and dead. As no farther progress was 
observable during the course of the summer, I made a selection 
of infested grains, but did not examine them particularly again 
till about the 26th October, when I found numerous beetles, but 
still not by any means corresponding in number with the infested 
corns of wheat, and the larve were still to be found in the grains, 
and some beetles only about half the ordinary size, and differing 
in marking from the normal type. In one case the elytra were 
altogether paler than the beetle, and in another the colour was 
prolonged from the spots so as to form a stripe, but the variety in 
marking, I believe, resulted simply from the sickliness of the 
beetle having checked the usual development of colouring as well 
as of size. 
In the healthy specimens the colouring was as in the 
