Carabid - Bembidion semistriatum - BugGuide.Net

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Ground Beetles (Carabidae) » Trechinae » Bembidiini » Bembidiina » Bembidion » Subgenus Hydriomicrus (Bembidion Subgenus Hydriomicrus) » Bembidion semistriatum

Photo#363736

Copyright © 2010 Jeff Gruber & UW-Madison Dept. of Entomology

Carabid - Bembidion semistriatum

9.4 km N of Cass, Franklin County, Arkansas, USA
April 27, 2009
Size: just over 4mm

Sifted from flood debris accumulated on bank of W Fleming Creek, hardwood dominated forest.

Bembidion?

All pics taken with automontage system. Actual montaging done with CombineZP.

Images of this individual: tag all

Carabid - Bembidion semistriatum

Carabid - Bembidion semistriatum

Carabid - Bembidion semistriatum

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Contributed by Jeff Gruber on 10 January, 2010 - 1:00pm
Last updated 10 January, 2010 - 2:39pm

Bembidion semistriatum

is confirmed based on my microscopic examination of this photo-vouchered specimen. Not given AR status in Bousquet & Larochelle (1993). Thanks Jeff.

… Peter W. Messer, 2 April, 2010 - 8:53pm

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Moved

Moved from Ground Beetles.

… Jeff Gruber, 10 January, 2010 - 2:39pm

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Thanks

Thanks all!

… Jeff Gruber, 10 January, 2010 - 2:38pm

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Bembidion semistriatum

seems certain based on image clearly showing elytra intervals each with row of setae, unbordered metasternal process, and faded striae laterally and apically. Should be another "BugGuide phototype" for now. See same of Tom Murray's catch. I will notify Yves Bousquet about this potentially new state record, i.e., it was not given AR status in Bousquet & Larochelle (1993). Jeff, please save this specimen for my microscopic confirmation. Thanks.

… Peter W. Messer, 10 January, 2010 - 2:27pm

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Thanks

Thanks Peter. Will be in my next batch, hopefully soon.

… Jeff Gruber, 10 January, 2010 - 2:37pm

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Bembidion--yes

Yes, the terminal palpomeres are consistent with the Bembidiini. Maybe Peter or others can give you a species-ID (or at the very least a subgenus).

… Blaine Mathison, 10 January, 2010 - 1:10pm

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Bembidion nigrum group

as characterized by the obliterated outer elytral striae before the apex. Likely B. concolor due to constricted pronotum and visible laterobasal carinae. Let's see what others think...

… Tim Loh, 10 January, 2010 - 2:31pm

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Never mind

wrong ID...

… Tim Loh, 10 January, 2010 - 2:31pm

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