— 54 — 
52. — Carpet Beetle o” Buffalo Moth; a, larva; b, pupa within th& 
larval skin; c, pupa removed from larval skin; d, adult beetle. All greatly en- 
larged. (After Riley ) 
the tail end end of the body. It works most about the bor- 
ders of carpets and alon^ cracks in the floor. It is most 
commonly known as the “Buffalo Moth,” but it is not a moth 
at all but a beetle. 
Remedies — This household pest is more difficult to rout 
than the clothes moths above mentioned. The treatment 
is the same but needs to be more vigorously and persistently 
applied. If very troublesome it will be found best to do 
away with carpets and use rugs instead, the rugs to be fre- 
quently removed from the house and beaten. 
INSECTICIDES. 
An insecticide may be defined as any preparation which 
can be used for the destruction of insects. Insects are ani- 
mals and the substances that will kill animals of large 
growth will, as a rule, kill insects also. 
In order to apply insecticides intelligently one should 
know the principle underlying their use, then he does not 
have to be bound by any fast rule. These principle are so 
simple that I will give them. 
We may separate the insect-destroying substances into 
'I'lIRF.E CLASSES, 
depending upon the manner in which the death-dealing 
work is done. 
First, and most important among these, are the food- 
