generally the same length as the rostrum. The
antennae are angled (geniculate) and the first
segment is withdrawn into a groove during drilling,
to protect the antennae from harm. The female lays
a single egg in each hole, and the larvae that hatch
from the egg are white legless grubs, which develop
surrounded by food and protected from desiccation,
predators, and parasitoids. Numerous species, such
galls made by wasps on the leaves of
the host plants, and the South American
Ludovix fasciatus oviposits (lays its eggs) in
the egg cases of the grasshopper Cornops
aquaticum (Orthoptera), one of the few
cases of carnivory in the weevils
above | Curculio nucum The Hazelnut
Weevil drills into hazelnuts and lays
one egg in each nut. It can be a minor
pest of nut agriculture.
as those in the genus Curculio, lay their eggs in nuts or
seeds, and the larvae grow within the protection of
the seed’s shell.
right | Erodiscus This Pinocchio
Weevil from South America has one
of the longest rostra of any weevil
relative to its body length.