Aporocera is a genus of leaf beetles commonly called case bearing leaf beetles in the subfamily Cryptocephalinae. Aporocera are well represented in all states of Australia[1] and consist of 148 species in two subspecies.[2]
The adults are roughly cylindrical in shape and have long antennae, more-so for males.
They are common on Eucalyptus including Eucalyptus globulus but are usually not a problem.
Eggs are about 1mm and are laid inside faecal pellets. When the larvae hatch, they work a hole in one end and remain in the faecal case as they feed on leaf litter on the forest floor. When they pupate, they seal their case again. https://web.archive.org/web/20160304095859/http://plantationhealth.com.au/pdf/pestnotes/cadmus.pdf