Leaf Case Moth (Hyalarcta huebneri) is a species of a given group of moths whose caterpillars make mobile homes from silk, usually attaching plant material, detritus or sand grains to the outside. They are known collectively as case moths, bag moths or bagworms.

In Central Australia, there are several species of Case Moth, common species being the Leafy Case Moth (Hyalarcta huebneri) and the Ribbed Case Moth (Hyalarcta nigrescens).

The Ribbed Case Moth has a case that consists of a silken bag and unlike others is not decorated with plant material, instead it has several ridged ribs running along its
length. The Leafy Case Moth uses small pieces of leaf from the host plant to decorate the case, however have also been known to use pieces of twigs, and is sometimes confused with the Stick Case Moth (Clania lewinii).

Common name
Leaf Case Moth, Case Moth, Leafy Case Moth.

Many species of case moth caterpillars feed on plants, whilst others are known to feed on lichens.

The caterpillar is a very skilled climber and is able to climb any surface by creating a silk ladder attached to the surface they are climbing.

Pupation can be just a few weeks to a few months depending on the season and the weather. The female adult has no wings and remains in the case. The male has short wings with a longish abdomen, that allows it to mate with the female who remains inside her case.


  • Scientific classification
  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Class: Insecta
  • Order: Lepidoptera
  • Family: Psychidae
  • Subfamily: Oiketicinae
  • Genus: Hyalarcta
  • Species: H. huebneri
  • Binomial name: Hyalarcta huebneri