COLEOPTERA 29 
Panay 
“ orubs. 
of the grub, 
A resting stage, or pupa, follows the completion of growth 
Finally from the pupa emerges the adult beetle. 
Fic. 
The mouth parts are formed for biting. 
this order the head is prolonged in a sort of snout. 
sucking organ, but bears at its 
end true jaws, adapted for biting 
The 
the 
and chewing. larvee or 
* erubs "of snout beetles 
have no legs. 
The antennx are of many dis- 
tinct types, ranging from simple 
filiform or moniliform shapes to 
complex types that can only be 
classed as“ irregular." Some of 
the subgroups are commonly des- 
ignated according to the kind of 
antenna: as, for example, the Clavicorns, the 
Serricorns. 
27. —A beetle, Lachnosterna, 
Original. 
In one subgroup within 
This is not a 
os.—A nout beetle, Rhynchites. 
Original. 
Fic. 
Enlarged and natural size. 
Lamellicorns, or the 
Something like 20,000 species have been described. 
