Owl Moths
Discolor Noctuid Moth
Grass SemiLooper Moths
Pink Line Looper Moth
Black Triangle Moths
4-Triangled Noctuid
Round-eyed Striped Noctuid
Rectangular-striped Noctuid
Triangular-striped Moth


White Underwings Moth III - Achaea sp.

Family Noctuidae

This page contains pictures and information about White Underwings Moths that we found in the Brisbane area, Queensland, Australia.

Length 60mm
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We found this caterpillars on May 2008, near Buhot Creek, Stringybark Trail. There were quite a number of caterpillars actively feeding the host plants during the day. We did not found the moth yet.
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Robert Whyte advised that the host plant is a weed in Brisbane - Castor Oil Plant (Ricinus communis) - it would be very good if something could eat it all. The seeds contain the Ricin, a protein toxin. Ingestion of 2 to 8 seeds has resulted in death in adults.

We found one large caterpillar on 3 May 2009. We believe it would became pupa very soon so we took  it home with some host leaves. After two days it became a pupa in a rather scant silk cocoon.
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On 3 Jun 2009, a moth came out from the pupa.
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Notice the mouth-opening pattern on the back of the caterpillar. Why is that pattern? Please check the Threaten Sign page.

1. Achaea janata (Linnaeus, 1758) - Australian Caterpillars, by Don Herbison-Evans & Stella Crossley, 2008.
2. Ricinis communis (EUPHORBIACEAE) Castor oil plant - by Robert Whyte, Save Our Waterways Now 2008. 

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Last updated: December 04, 2011.