Eucalypt Longhorn
Feather-horned Longhorn Beetle
Feather-horned Longhorn Beetle (Piesarthrius laminosus)Class: Animals (Animalia) - Jointed Legs (Arthropoda) - Insects (Insecta)
Order: Beetles (Coleoptera)
Family: Longhorn Beetle (Cerambycidae)     iNaturalist Observation
Species: Feather-horned Longhorn Beetle (Piesarthrius laminosus)
This Photo:     Whole
Other names: Longicorn Beetle, Long-horn Beetle or Long Horned Beetle

Thank you Francesco Vitali for confirming the id of this species for us

General Species Information:
Found on Ellura (in the Murray Mallee, SA) and elsewhere
About 15mm long with very long thin wide filaments on the antennae.
It's difficult to determine how long the antennae are. Superficially they are a bit over 12mm long. However, the end segment has 2 filaments, of about 5mm long. So really the antennae are about 7mm, with 5mm of filament nearly doubling their length. The filaments vary in length, with the middle being the longest at about 7mm, and both edges being ~5mm.
As with many longhorns, the eyes are heavily indented and wrap around the antennae base.

Copyright © 2018-2023 Brett & Marie Smith. All Rights Reserved. Photographed 21-Feb-2018
This species is an Australian Native Species, not listed in the SA Murray Mallee Survey of 2010.