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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Ground Beetles (Carabidae) » Carabinae » Carabini » Carabus » subgenus Tanaocarabus (Carabus subgenus Tanaocarabus) » Woodland Ground Beetle (Carabus sylvosus)
Photo#724205
Carabus sylvosus? - Carabus sylvosus
Copyright © 2012 Lisa Dolliver

Carabus sylvosus? - Carabus sylvosus
Cedar Hill, Dallas County, Texas, USA
October 28, 2012

Images of this individual: tag all
Carabus sylvosus? - Carabus sylvosus Carabus sylvosus? - Carabus sylvosus
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Contributed by Lisa Dolliver on 18 November, 2012 - 2:46pm
Last updated 20 March, 2015 - 10:36pm

Carabus finitimus
Carabus finitimus
… Dan Sundberg, 3 September, 2016 - 1:56pm login or register to post comments

 
how to tell?
How does one distinguish sylvosus from finitimus? Could someone update the Info page with a way to distinguish them?

I found this befuddling comment here:
http://www.jstor.org/stable/pdf/25076312.pdf
p. 248
"C. sylvosus and finitimus differ in the latter being a broader and
more robust species, the elytral margin more reflexed ; the surface is smoother and more shining. These differences do not appear, how ever, to be of any very great value, as there are specimens in the cabinet of Mr. Ulke of such a form as to render it extremely doubtful to which of the two they should be referred. "
… Russell Pfau, 11 November, 2017 - 8:25am login or register to post comments

good call! femake, too
Moved from ID Request.
… v belov, 18 November, 2012 - 3:31pm login or register to post comments

 
How can you tell it's female?
I don't see an explanation on the page.
… Lisa Dolliver, 18 November, 2012 - 3:38pm login or register to post comments

 
in male carabids foretarsi are dilated
compare

more males [random pics]:

females:
… v belov, 18 November, 2012 - 4:18pm login or register to post comments

 
Thanks so much!
I'm in education and little details like that can have a big impact!
… Lisa Dolliver, 18 November, 2012 - 4:22pm login or register to post comments

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