Australia

Hibiscus flower beetle (Hibiscus beetle, flower beetle)

Aethina concolor

These black beetles are oval in shape and around 3mm in size. They are particularly shy and generally hide in the folds of the flowers. Hibiscus beetle chew holes in both the flowers as well as the foliage of Hibiscus and related plants such as Abutilon. Tattered foliage and flowers give a general look of poor health and stress the plants. 

Pesticides