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Eucalyptus chafer

Xylonichus eucalypti

Photo by Leuba Ridgway
Published on Project Noah
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-37.8932, 145.309

Field Notes

Description:

An attractive stout beetle about 23 mm long. Its bright green elytra showed linear pitting with short stiff pale setae. Margins were yellow. Head and thorax were a slightly paler green colour. Legs were a deep brown with green femurs and had stiff hairs. Antennae had at least 4 leaflets.
Beneath the elytra and along the sides were dense hairs.

Habitat:

Spotted under bright lights at a car yard located across a national park with eucalyptus trees.

My thanks to martinl and Stephen Thorpe for the ID. Yet to find information on this chafer.

Notes:

Family: Scarabaeidae

Species ID Suggestions

Comments (3)

Martin, thanks so much for looking at this, for your feedback and correction. there is so little information on this genus - just photos and i went with DHobern's pics. Now I need to find out what the difference between X.eucalypti and X.piliger is ??
https://sites.google.com/site/insectsoftasmaniacoleoptera/suborder-polyphaga/scarabaeidae-scarab-beetles/genus-xylonichus
Leuba, I've spent hours on this one. It looks to me like Melolonthinae (chafer beetles) - note the longer hind legs and smaller hooks. Christmas beetles are in Rutelinae and include Anoplognathus sp. with characteristic hooks. http://www.brisbaneinsects.com/brisbane_scarabs/ScarabBeetles.html I have seen this beetle and called it Xylonichus eucalypti which is now in EOL http://eol.org/pages/13789704/overview (my image). This genus is confirmed in Tasmania on this site http://www.tfic.net.au/SpeciesPages/Xylonichus%20piliger.html I seldom question DHobern but he has two species on this site http://bie.ala.org.au/species/Anoplognathus+prasinus#tab_gallery The first three are Xylonichus eucalypti in my opinion (chafers) as yours is. The fourth and fifth are correctly named and christmas beetles (rutelinae) This is a confusing species with little online data. Please give me feedback. http://www.projectnoah.org/spottings/7728338

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