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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Ground and Water Beetles (Adephaga) » Ground Beetles (Carabidae) » Carabinae » Carabini » Carabus » Granulated Carabid (Carabus granulatus)
Photo#109257
Nocturnal Carabid? - Carabus granulatus
Copyright © 2007 David Kleiman

Nocturnal Carabid? - Carabus granulatus
Thornhill, Ontario, Canada
May 11, 2007
Size: 2-2.5cm
Found on a night hike along a local, suburban ravine. There were lots of ants around where I found the beetle, but this may have been coincidental. Can someone provide an ID please?

Images of this individual: tag all
Nocturnal Carabid? - Carabus granulatus Nocturnal Carabid? - Carabus granulatus
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Contributed by David Kleiman on 11 May, 2007 - 11:12pm
Last updated 12 May, 2007 - 1:00pm

Based on the shape of the pronotum,
this looks to be a Carabus granulatus (Compare with image here).
I recently caught one at a park hear my home in Richmond Hill, though that was during the late afternoon.
May I ask which ravine you were at? Just curious :-)
… Stephen Luk, 12 May, 2007 - 12:32am login or register to post comments

 
John Street Ravine
Hi Stephen. Thanks so much for the ID. It's certainly bang on! It seems like you and I are similar creatures. I took this shot last night at the John Street Ravine near the corner of John St. and Don Mills.
… David Kleiman, 12 May, 2007 - 12:35pm login or register to post comments

 
Ah, thanks for letting me know.
There are many small parks in that area, with several large country clubs as well (there's only one in Richmond Hill) ... lots of greener areas. I've never been out in a ravine at night (parents won't allow), though I'll bet there's a lot out there during these hours!
… Stephen Luk, 12 May, 2007 - 4:28pm login or register to post comments

 
Native?
I know several European Carabus have been introduced to North America. Is this one of them?
… Eric R. Eaton, 15 May, 2007 - 5:54pm login or register to post comments

 
Introduced, I believe.
The Carabidae list for the CNC Checklist identifies (by the "+" sign) granulatus as an introduced Carabus species, along with hibernicus and nemoralis (the "European Ground Beetle", my National Audubon Field Guide calls it). Although one of their favorite foods, the earthworm, is also a European import :-)
… Stephen Luk, 15 May, 2007 - 7:32pm login or register to post comments

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