Four-horned Gumtree Gall - Apiomorpha munita

Family Eriococcidae

This page contains pictures and information about Four-horned Gumtree Gall that we found in the Brisbane area, Queensland, Australia.   

Female gall, length 20mm 

 

Female matured gall is four-sided and has either 3 or 4 horns projected from each top corner. Live gall is green in colour.

 

 

The scale insects in this family Eriococcidae induce distinctive woody gall on plants. The insect lives inside the gall from 1st instars to adult. Female adult stays inside the gall while winged male leaves its gall and look for the females. The gall induced by female and male usually look very different. 

 

 

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Reference: 

1. Insects of Australia, CSIRO, Division of Entomology, Melbourne University Press, 2nd Edition 1991, Fig30.25D.

2. Insects of Australia and New Zealand - R. J. Tillyard, Angus & Robertson, Ltd, Sydney, 1926, Plate 14_5.

3. A Revision of the Gall-Forming Coccoid Genus Apiomorpha Rubsaamen (Homoptera : Eriococcidae : Apiomorphinae) - P.J. Gullan, Aust. J. Zool., Suppl. Ser., 1984, No. 97, 1-203. 

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Last updated: October 11, 2010.