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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Longhorn and Leaf Beetles (Chrysomeloidea) » Longhorn Beetles (Cerambycidae) » Prioninae » Prionini » Derobrachus » Thomas's Oak Borer (Derobrachus thomasi)
Photo#639723
Big beetle: Tricochnemis, formerly Ergates? - Derobrachus thomasi
Copyright © 2012 Ben Kolstad

Big beetle: Tricochnemis, formerly Ergates? - Derobrachus thomasi
Yamato Scrub, Boca Raton, Palm Beach County, Florida, USA
May 10, 2012
Size: ~2 inches
Biggest beetle I've seen in real life. Larger than all the cockroaches I've seen here in south Florida (and that's saying something!). Ergates species?

Images of this individual: tag all
Big beetle: Tricochnemis, formerly Ergates? - Derobrachus thomasi Big beetle: Trichocnemis, formerly Ergates? - Derobrachus thomasi
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Contributed by Ben Kolstad on 10 May, 2012 - 12:01pm
Last updated 11 May, 2012 - 12:59pm

Moved
Moved from ID Request.
… v belov, 11 May, 2012 - 12:59pm login or register to post comments

thinking Derobrachus (brevicollis?)
… Blaine Mathison, 10 May, 2012 - 12:33pm login or register to post comments

 
Spiny thorax
Wow, I'm lame, and getting blind in my old age. I didn't notice the spiny thorax at all until you brought up this genus. Thanks, Blaine!
… Ben Kolstad, 10 May, 2012 - 1:09pm login or register to post comments

 
Derobrachus thomasi
D. brevicollis only occurs in the far northern part of the state.
… Michael C. Thomas, 10 May, 2012 - 1:05pm login or register to post comments

 
thomasi was my first thought
the pronotum didnt look hairy enough based on the info page...:)
… Blaine Mathison, 10 May, 2012 - 1:19pm login or register to post comments

 
Thanks, Michael!
Derobrachus thomasi, then. Similar pest status to D. brevicollis? This one was in a natural area with no agriculture or sod/turfgrass nearby.
… Ben Kolstad, 10 May, 2012 - 1:16pm login or register to post comments

 
I don't think
anything is known about the biology of D. thomasi specifically, but it's fairly safe to assume that it's similar to D. brevicollis. By the way, I've been to Yamato Scrub and it is a very nice habitat.
… Michael C. Thomas, 10 May, 2012 - 2:59pm login or register to post comments

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