Bag Worms or
Case Moths
(Lepidoptera:
Psychidae)
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Bag worms or case moths (Psychidae)
take their name from their bag- or case-bearing
caterpillars. The mobile bags or cases are often tapered
at both sides with an opening through which the
caterpillar feeds. The cases are made from various
materials such as leaves and sticks and are diagnostic of
the species. During feeding, the caterpillars drag the
case along the surface of a leaf. The pupa remains in the
case, as do the adult females in some species. The adults
are small.
The bag worms of the genus Hyalarcta
spp. and Eumeta spp.
feed on Eucalyptus spp. The bag of a Hyalarcta
sp. caterpillar on Eucalyptus torelliana is
shown on the photo between the two fingers |
 |
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© Michael F. Schneider,
1999