• Narrow distribution. Probably native of Fiji. Hosts are hibiscus, and members of the myrtle family, including Eucalyptus, Melaleuca, and Eugenia.
• Damage done by adults chewing the flowers. 
• Eggs coated with faeces drop to the ground. Larvae take very long time to emerge; they live in a case of their own faeces, are nocturnal and feed on dead leaves and bark, but maybe part-time on living plants. Adults with brown head  and black forewings. Often seen 'male-gating' (male on female preventing access to others).
• Cultural control: hand-pick, checking both night and day.
• Chemical control: unlikely to be needed, but if they are try biorational first: neem, pyrethrum or chilli.

Hibiscus flower-eating beetle

Genus and species unknown. A chrysomelid beetle of the subfamily Cryptocephalinae.