The giant metallic ceiba borer has been recorded breeding between December and March (4), when the female lays eggs on a woody plant or rotting stump (2) (5) (8). The eggs are laid in batches of up to 10, with an average of 4 batches on a single plant. Each female produces around 240 eggs in total (4). Some studies have recorded the giant metallic ceiba borer mating in August, the males apparently attracting females using a clicking sound produced by the elytra (9).
The eggs of the giant metallic ceiba borer hatch after about 19 days (4). As its common name suggests, the larvae of this species are wood borers, burrowing into the host plant and feeding on its wood (5), which is digested with the aid of bacteria in the gut (8). The larvae may remain inside the plant for up to two years, growing in size and passing through various developmental stages (‘instars’) (4) (8). The larva then pupates, a process which takes around 30 days, and finally emerges from the tree as an adult beetle (4).
Adult giant metallic ceiba borers are commonly active on warm, sunny days (5). Like other Buprestidae species, they are strong fliers and are likely to feed on leaves and pollen (5) (7). The bright colours of this species may play a role in camouflage or communication (8).