Woodlands Historic Park Caterpillars

Sawfly larva (Lophyrotoma species) at Woodlands Historic Park
Larva of Green Long-tailed Sawfly, late February (photo Andrew Allen)
Sawfly larva (Lophyrotoma species) at Woodlands Historic Park
Larva of Green Long-tailed Sawfly on a Red Gum leaf, mid Jan
Sawfly larva (Lophyrotoma species) at Woodlands Historic Park
Young larval stages skeletonize the leaf, while later stages eat the whole thing.

An adult is shown here.

Classification

from Australian Faunal Directory

Order Hymenoptera - Wasps, Ants, Bees and Sawflies, 12202 named species in Australia
Superfamily Tenthredinoidea - Sawflies, 161 named species in Australia
Family Pergidae - typical Sawflies, 140 named species in Australia
Genus Lophyrotoma
Species Lophyrotoma interrupta - Green Long-tailed Sawfly or Cattle Poisoning Sawfly