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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Scarabaeoidea » Scarab Beetles (Scarabaeidae) » Fruit and Flower Chafers (Cetoniinae) » Osmodermatini » Osmoderma » Osmoderma subplanata
Photo#995289
Large MT Scarab - Osmoderma subplanata
Copyright © 2014 Robert Niese

Large MT Scarab - Osmoderma subplanata
Missoula, Missoula County, Montana, USA
July 30, 2014
Size: 29mm
Resembles Osmoderma, but seems to be well outside the range for that genus. Found just before dusk on a footbridge in downtown Missoula. Specimen collected.

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Large MT Scarab - Osmoderma subplanata Large MT Scarab - Osmoderma subplanata Large MT Scarab - Osmoderma subplanata
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Contributed by Robert Niese on 12 September, 2014 - 8:30pm
Last updated 18 July, 2016 - 9:38am

Moved
Moved from ID Request.
… Blaine Mathison, 12 September, 2014 - 10:00pm login or register to post comments

I'm thinking...
I'm thinking something in the Genus Osmoderma...
… Bill Myers, 12 September, 2014 - 9:46pm login or register to post comments

 
I would concur, however, isn'
I would concur, however, isn't this quite a bit far west for the genus? Missoula County is practically Idaho which is practically Washington. I'm just very hesitant.
… Robert Niese, 12 September, 2014 - 10:03pm login or register to post comments

 
Wickham, 1920
In 1920, Henry Frederick Wickham records an Osmoderma montana, AKA Osmoderma subplanatum.

I'm figuring he found it in Montana.

http://www.biolib.cz/en/taxonnames/id870537/

Whatever the case, your beetle sure looks like an Osmoderma.

Give it the smell test: Does it smell like leather?

I'm pretty sure it does.

Yup, this is a first on Bugguide for Montana, but not a first for the entomological community.

Congrats!

P.S. - I'm hesitant to call this an O. subplanata, it looks more like an Osmoderma eremicola to me, but I'll leave it to the community to decide.
… Bill Myers, 13 September, 2014 - 8:52am login or register to post comments

 
distribution of Osmoderma subplanata
According to Howden (1968), O. subplanata occurs west through MT into southern Alberta.

"practically Idaho which is practically Washington"--a lot of habitat in all those practicallys.
… Blaine Mathison, 13 September, 2014 - 6:18am login or register to post comments

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