Longicorn Beetle larvae are typically creamy-yellow grubs with dark heads bearing powerful jaws, and large thoracic segments or ‘shoulders’. Larvae of common Longicorn Beetle species are 30 mm to 50 mm long.
Jewel Beetle larvae are legless creamy grubs, with a wide flattened thorax and a long body giving them an almost cobra-like appearance. Jewel Beetle larvae resemble Longicorn Beetle grubs but can be differentiated by an inverted ‘V’ on the first segment of the thorax, which is lacking in Longicorn Beetle larvae.
Wood Moth larvae are usually very large from 50 mm to 150 mm long, and yellow, grey or pink in colour depending on the species. Larvae are mostly hairless with armoured thoracic segments and brown heads.
Fruit-tree Borer larvae are pale pinkish brown caterpillars with brown heads and they grow to about 50 mm long.
Adult Longicorn Beetles vary in size from a few millimetres to more than 80 mm in length, with conspicuously long antennae, which may exceed body length (hence, ‘longhorned’ or ‘longicorn’).
Adult Jewel Beetles are mostly brightly coloured metallic beetles from 2 mm to 60 mm long. They are elongated and flattened beetles with short antennae − unlike Longicorn Beetles that have very long antennae.
Adult Wood Moths are usually large grey or brownish moths. Some Wood Moths are truly enormous with wing spans of 250 mm.
The adult Fruit-tree Borer moth is satiny-white and has a 30 mm to 50 mm wingspan. The upper surface of the abdomen is black with an orange-coloured fringe of hairs. There is a small black spot located near the centre of each white forewing.