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Apiomorpha pileata
A large ovoid gall about 25 mm long. The apex was truncated and the opening was a smoothly rounded slit. The gall wall was about 4 mm thick.
Spotted on the stem of a young eucalytpus tree (probably Eucalyptus radiata) in a state park ( mixed natives) - Cathedral Ranges SP.
The common name comes from the shape of the gall which looks like a Bishop's mitre.
This gall is formed by Eriococcid scale insects.
Male galls are smaller and cylindrical as seen here:
https://www.projectnoah.org/spottings/59...
Family: Eriococcidae
https://bie.ala.org.au/species/urn:lsid:...
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