Leaf Beetles (Family Chrysomelidae)

Eucalypt Leaf Beetle, Paropsis maculata Eucalypt Leaf Beetle, Paropsis maculata Adult paropsine leaf beetle Adult paropsine leaf beetles often have brilliant species-specific colour patterns that fade in dead specimens. Celtis Leaf Beetle, Menippus cynicus Celtis Leaf Beetle, Menippus cynicus

Beetles in the family Chrysomelidae are commonly known as leaf beetles. In Australia there are over 3,000 species of leaf beetles feeding on living roots, leaves, stems, flowers, pollen, fruits and seeds. Some larvae feed inside living plants. Many are important pests of agriculture.

Eucalypt Leaf Beetle
Paropsis maculata

Biology

The adults and larvae feed on the leaves of stringybark eucalypts in open forest and woodland in eastern Queensland and New South Wales. Eggs are laid in loose groups on twigs or leaf edges. The caterpillar- like larvae feed in groups.

Identification

Length 8-10 mm. The convex body is oval-shaped. The head and thorax are yellowish, mottled with brown with the wing-covers brown, mottled with pale yellow. There are many other related species of ‘paropsine’ leaf beetles that feed on eucalypts, wattles and related plants.

Celtis Leaf Beetle
Menippus cynicus

Biology

Adults and larvae feed on the young foliage of introduced Chinese Elm trees (Celtis sinensis), a pest tree species in Brisbane. The larvae are black and caterpillar-like. This species is native to central coastal Queensland where it feeds on the native tree, Celtis paniculata.

Recently the beetle has expanded its range further south and is now common in Brisbane.

Identification

Length about 10 mm. The oval-shaped, convex body is dull brown with a black underside.

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