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Carpenter worm

Scientific Name
Chilecomadia valdiviana
Scientific Author
(Lepidoptera: Cossidae)
Exotic species - absent from Australia

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Diagnostic Images

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Diagnostic Images (11)
Other Images (5)
Diagnostic Notes
There are several species of the cossid moth genus Chilecomadia in South America:

- Chilecomadia discoclathratus Bryk 1945

- Chilecomadia moorei Silva Figuero 1915

- Chilecomadia munroei (Clench, 1957)

- Chilecomadia valdiviana Philippi 1860

- Chilecomadia zeuzerina Bryk 1945

The larvae of Chilecomadia moorei, called the Chilean Moth or Butterworm of Trevo worm, is commercially collected and sold in the pet food trade.

The carpentar worm, Chilecomadia valdiviana, is pest species. The larvae feed on Nothofagus and Salix species and are considered a pest in Chilean Eucalyptus plantations. They have been reported on Eucalyptus globulus globulus, Eucalyptus nitens, Eucalyptus camaldulensis, Eucalyptus delegatensis and Eucalyptus viminalis.

Adult females forewing span 48 and 60 mm and body length about 30-40mm, forewings with mottled colours of grey, ash, brown and white; each forewing with two distinct triangles (one in the chorda - the base of the R veins; and a second at the base of the CuA and CuP veins) of white, yellow and black scales; hindwings brown, sometimes with two or three white spots. Body is heavily covered with grey-silver hairs, the side of the abdomen has banded black and brown hair; legs banded. Males, have a wingspan of 42 - 48 mm, are darker and more diffuse than the females. The antennaes in both sexes are similar.
More Information
Specimen Contact
Museum Victoria
Walker, K.
19/06/2006 11:18 AEST
Last Updated
21/10/2011 09:49 AEST
Walker, K. (2006) Carpenter worm (Chilecomadia valdiviana) Updated on 10/21/2011 9:49:07 AM Available online: PaDIL -
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Free for use under the Creative Commons Attribution 3.0 Australia License