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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Tenebrionoidea » Darkling Beetles (Tenebrionidae) » Stenochiinae » Cnodalonini » Coelocnemis » California Broad-necked Darkling Beetle (Coelocnemis dilaticollis)
Photo#72842
Large Darkling Beetle - Coelocnemis dilaticollis
Copyright © 2006 Lynette Elliott

Large Darkling Beetle - Coelocnemis dilaticollis
Thompson Falls, Sanders County, Montana, USA
June 19, 2006
Size: around 25 mm?
Found under a pile of firewood. I'm guessing on genus based on other images in the guide.
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Contributed by Lynette Elliott on 25 August, 2006 - 6:03pm
Last updated 3 May, 2017 - 10:09pm

Moved
Moved from Coelocnemis.
… Hisserdude, 3 May, 2017 - 10:09pm login or register to post comments

C. californica
overall shape, rough texture, and geographic location
… tenebboy, 3 May, 2017 - 9:49pm login or register to post comments

Moved
Moved from Coelocnemis.
… Lynette Elliott, 29 November, 2006 - 7:39am login or register to post comments

not Opatrinae
Coelocnemis is not Opatrinae. It is Coelometopinae.
… kanchan, 29 November, 2006 - 12:39am login or register to post comments

Moved
Moved from Eleodes.
… Lynette Elliott, 28 August, 2006 - 7:04pm login or register to post comments

Not Eleodes.
I'm pretty sure this is actually a species of Coelocnemis, but it is very easy to get the two confused. Usually, Coelocnemis species have a wide pronotum (top of thorax), as this specimen has. Also, Coelocnemis is typical of ponderosa pine forests, while Eleodes are in high desert habitats, and lower elevations.
… Eric R. Eaton, 28 August, 2006 - 5:04pm login or register to post comments

 
Coelocnemis characters
there are some Eleodes with wide pronotum and quite a number of species that live in ponderosa pine forest. What gives it away as Coelocnemis are the golden streaks of hair on the tibias. ( visible on hind right)
… kanchan, 17 October, 2006 - 6:03pm login or register to post comments

 
Thanks Eric
That helps a lot.
… Lynette Elliott, 28 August, 2006 - 7:05pm login or register to post comments

Eleodes suturalis?
Check here.
… Adalbert Goertz, 25 August, 2006 - 10:41pm login or register to post comments

 
Thanks
This specimen seems to be more pitted and less distinctly lined than your shot.
… Lynette Elliott, 26 August, 2006 - 9:39am login or register to post comments

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