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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles (Polyphaga) » Long-horned and Leaf Beetles (Chrysomeloidea) » Longhorned Beetles (Cerambycidae) » Prioninae » Macrotomini » Mallodon » Hardwood Stump Borer (Mallodon dasystomus)
Photo#5148
Hardwood Stump Borer - Mallodon dasystomus - female
Copyright © 2004 Cotinis

Hardwood Stump Borer - Mallodon dasystomus - Female
Durham County, North Carolina, USA
July 9, 2004
Detail of head, antennae, pronotum. Note the fine teeth on the sides of the pronotum, which distinguishes this from Prionus, for instance.

Phil Harpootlian commented (on another image) as follows:
(This photo) "is diagnostic (for Mallodon) - pronotum with sides arcuate, mandibles pointed forward (not downward) and antenna inserted from projection."

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Hardwood Stump Borer - Mallodon dasystomus - female Hardwood Stump Borer - Mallodon dasystomus - female
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Contributed by Cotinis on 23 July, 2004 - 5:22am
Last updated 5 November, 2005 - 8:47am

Stenodontes?
Reminds me of a female Stenodontes. The two are very difficult to separate. You may be correct, I am not an expert on prionids:-)
… Eric R. Eaton, 23 July, 2004 - 1:19pm login or register to post comments

 
Long beetle
I saw something very similar the other night when it alighted next to my porch light. It was about one and one quarter inches long. Rich brown color above; lighter below. Head was black. I thought of taking a picture, but that was before I noticed it was missing a first leg. I had a feeling Patrick would take up the slack.
… Tom Adams, 23 July, 2004 - 7:48pm login or register to post comments

 
will check on this, good point
Now, I thought I had differentiated correctly based on Yanega, which describes and illustrates both genera, but I'll double-check. (I don't have the book with me here.) I also have photos of the underside, which will perhaps help determine the sex.

Thanks for the quality control check--always appreciated.

Patrick Coin
Durham, North Carolina
… Cotinis, 23 July, 2004 - 1:38pm login or register to post comments

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