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Poinciana Longicorn Beetle

Agrianome spinicollis


A large longicorn (longhorned) beetle about 55 mm long with pale pearly brown smooth elytra. A darker brown thorax was textured with small depressions and short lateral spines. Antennae appeared to be a little longer than half the body length. The beetle's mandibles were prominent.


Flew into the lights outside our cabin and kept flying around the lit area - A riverside caravan park.


The largest longicorn beetle I've seen.
Seen in Queensland, NSW and Lord Howe Island where Poinsiana and fig trees are in abundance. Fat white larvae of this species can be found in dead wood of these trees.
The antennae in this species is said to be longer than the body but this beetle's antennae was surprisingly shorter.
Family: Cerambicidae

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1 Comment

Neil Ross
Neil Ross a year ago

Nice spotting, Leuba. These are handsome beetles, and good nippers!

Leuba Ridgway
Spotted by
Leuba Ridgway

New South Wales, Australia

Spotted on Dec 15, 2019
Submitted on Dec 19, 2019

Spotted for Mission

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