Lime coloured Looper Caterpillar on Yellow Box (Family Geometridae)

Lime Looper Caterpillar imitating a twig — Unidentified Looper Caterpillar imitating a twig on a Yellow Box tree. The head is at the right.

Classification

Order Lepidoptera - Moths and Butterflies, 10855 named species in Australia
Superfamily Geometroidea - 1369 species in Australia
Family Geometridae - Loopers, 1369 named species in Australia
Genus ?
Species ?