Coreid Bugs
Wingless Coreid

Eucalyptus Tip-wilter Bug II - Amorbus obscuricornis

Family Coreidae

This page contains pictures and information about Eucalyptus Tip-wilter Bugs that we found in the Brisbane area, Queensland, Australia. 
Body length 20mm
The bugs feed on new shoots of Eucalyptus trees. They usually found feeding on new shots of gum trees during sunny days. This spices is not as common as other Amorbus species in Brisbane. 
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We found the bug once in Mt Coot-tha on March 2010. The bug was found on long-blade grass.
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Totally there are five nymphal stages. The first two nymphal instars of this species are green and black and the last three are orange and black.
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The nymph was found in Karawatha Forest and Ford Road Conservation Area on late summer. We are not sure if those young bugs are the nymphs of this species.

1. Specimen Image Index - Insect Reference Collection Database - ICDB, Western Australian Department of Agriculture, 2006. 
2. Sap-sucking Bugs 1 Coreid Bugs - By Charlma Phillips, PIRSA Forestry, 1993.
3. Observations on the Life History of Two. Sap-feeding Coreid Bugs and their Impact on Growth of Plantation Eucalypts - by R. Bashford, Forestry Commission, Tasmania, 1992. 

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Last updated: August 30, 2010.