Beetle Larvae Beetle larvae vary so much in form and structural details that it is impossible to give a good general
description of them. However, some individual types are easily recognized.
- White grubs--brown-headed, large, plump, white-bodied larvae
curved into a C-shape. They occur
in sod and rotten logs. The adults
are scarab beetles such as May
beetles, green June beetle,
Japanese beetle and chafers.
narrow, hard, straight-bodied
larvae resembling a piece of wire.
They occur mostly in soil and feed
on roots. The adults are click
wireworms but occur in barn chaff
or similar situations. The adults are
- Roundheaded wood borers--
found under loose tree bark or
boring into the wood. They are
legless, and the fleshy body is
broadened and rounded right
behind the head. The adults are
- Flatheaded wood borers--
somewhat resemble roundheaded
borers and are found in similar
places. The area behind the head is
broadened and flat.
- Leaf beetle larvae--many
different kinds, but most are plump
and soft-bodied. Common ones are
Colorado potato beetle, elm leaf
beetle, cereal leaf beetle (on
seedling oats and wheat) and
asparagus beetle. They are found
on host plants whose name they
- Mexican bean beetle--spiny,
yellow larvae found on bean
leaves. Although they are leaf
feeders, they really belong to the
ladybird beetle family.