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subgenus Steniridia (Scaphinotus subgenus Steniridia)
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Scaphinotus andrewsii
Photo#166413
Copyright © 2008
Brad Barnd
Scaphinotus -
Scaphinotus andrewsii
Whitley County, Kentucky, USA
June 21, 2005
Size: ~ 26 mm
Scaphinotus
, distinctly purple. I think this is S. viduus, but am not sure. (There are no carina on the elytra.)
Images of this individual:
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Contributed by
Brad Barnd
on 22 January, 2008 - 10:11pm
Last updated 14 May, 2011 - 3:37pm
Moved
Moved from
Scaphinotus
.
…
Brad Barnd
, 14 May, 2011 - 3:37pm
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Moved
Moved from
Scaphinotus viduus
.
…
Brad Barnd
, 12 May, 2011 - 10:52pm
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Moved
Moved from
Scaphinotus
.
…
Brad Barnd
, 21 June, 2010 - 2:40am
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Not sure?
I think S. viduus typically has a wider pronotum with reflexed hind angles (although not so much as in elevatus and unicolor that have a more squarish pronotum). This could be andrewsi although lots of possibilities in your area. Do you have a picture of the whole beetle?
I will try to get Peter Messer to take a look.
…
Frank Guarnieri
, 11 May, 2011 - 7:55pm
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Sure
I agree it looks much different. I'll get to adding a complete view soon.
…
Brad Barnd
, 11 May, 2011 - 9:56pm
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Scaphinotus confusus?
compare to
http://insects.oeb.harvard.edu/mcz/FMPro?-DB=Image.fm&-Lay=web&-Format=images.htm&Species_ID=16430&-Find
…
Frank Guarnieri
, 12 May, 2011 - 10:15pm
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Added full view
S. confusus isn't in the keys I have so I can't say. S. andrewsii is a good choice though.
…
Brad Barnd
, 12 May, 2011 - 11:03pm
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more choices
Pretty beetle. I don't have a good key; just surfing the web last night and looking at various online sources. What key are you using? Apparently confusus and guyoti are synonyms. Check out this image
http://carabidae.pro/carabidae/steniridia-casey-1924.html
. Those four beetles: valentinei, tricarinatus, guyoti, and andresii would all work. To me it looks like valentinei and adrewsii are superficially the most similar to your beetle. Probably some other species that we don't know about up in those moumtains and valleys!
…
Frank Guarnieri
, 13 May, 2011 - 5:49am
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Yes, "Scaphinotus confusus" is a junior synonym
of
Scaphinotus guyotii
(LeConte)
-- previously known in NC,TN, VA, WV. I have not had a chance to review published keys that might help here.
…
Peter W. Messer
, 13 May, 2011 - 11:44am
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More Scaphinotus update:
There is
no
"Scaphinotus valentinei Barr" in the published literature. I see Todd Lawton had posted "Scaphinotus andrewsii germari" with the habitus image. The other two subspecies known in "KY" are "S. andrewsii montanus" and "S. andrewsii mutablis". Definitive reference to sort out the subspecies: "Speciation in Steniridia, a Group of Cychrine Beetles (Family Carabidae, Genus Scaphinotus" by J.M. Valentine (1935) in Journal of the Elisha Mitchell Scientific Society. 51(2): 341-375, plates 65-73.
…
Peter W. Messer
, 14 May, 2011 - 8:33am
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thanks Peter
I checked that article (can be found online
here
) and it does seem to be S. andrewsii germari as Todd suggests. This is a female and doesn't really run through the key well, but distribution seems pretty clear.
…
Brad Barnd
, 14 May, 2011 - 3:40pm
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Hi Brad, Any details on wher
Hi Brad,
Any details on where this specimen was found? I'll be collecting Scaphinotus in VA and WV in a couple weeks; maybe I could also try a day in KY.
…
Todd Lawton
, 15 May, 2011 - 3:05pm
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sure
drop me an email and I'll give you the specifics
…
Brad Barnd
, 15 May, 2011 - 3:27pm
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Wow !
Very impressive jaws !
…
Sam Houston
, 23 January, 2008 - 12:35pm
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