282 
Beetles 
“Weevily” peas should be put into a tight box or bin, together with a 
small dish of bisulphide of carbon, the fumes of which will kill the insects. 
Or they may be immersed for a minute or two in water heated to 140° F.; 
this will kill all the beetles and larvae. 
The bean-weevil is a little larger than the pea-weevil and lacks the 
white spot on the thorax. Its life-history is about the same as that of the 
pea-weevil, the eggs being laid of course on the young bean-pods. Several 
eggs are frequently laid in a single bean. The bean-weevil continues to 
breed also in dry stored beans, and increases its damage materially if the 
stored beans lie long untouched. It is therefore necessary to treat weeviled 
beans with bisulphide of carbon or hot water before storing them away. 
Fig. 392. Fig. 393. 
Fig. 392 .—Prionus californicus. (Natural size.) 
Fig. 393.—Larva of Ergates spiculatus. (Natural size.) 
The other principal tetramerous family besides the Chrysomelidae is the 
Cerambycidae, or family of long-horn wood-boring beetles: “long horn” 
because of their long slender antennae, and “wood-boring” because their 
larvae live in burrows in the trunks of trees. The beetles themselves are 
usually large and strikingly colored and patterned, and whenever seen 
attract attention. Nearly 600 species are known in North America, and 
they are common all over the country. As might be concluded from the 
habits of the larvae, the family includes numerous serious pests, such species 
as the round-headed apple-tree borer, the oak-pruners, various hickory- 
borers, the twig-girdlers, the giant Prionids et al ., all causing much damage 
to orchards and forests. 
