unknown histerid - Geomysaprinus castanipennis - BugGuide.Net

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Staphyliniformia » Hydrophiloidea » Clown Beetles (Histeridae) » Saprininae » Euspilotini » Geomysaprinus » subgenus Priscosaprinus (Geomysaprinus subgenus Priscosaprinus) » Geomysaprinus castanipennis

Photo#334270

Copyright © 2009 Guy A. Hanley

unknown histerid - Geomysaprinus castanipennis

Minot, Ward County, North Dakota, USA
June 12, 2009
Size: 2.5 mm

Second post of this species with better lighting and ventral image, collected in S. richardsonii burrows

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Contributed by Guy A. Hanley on 18 September, 2009 - 9:43am
Last updated 22 March, 2010 - 3:48pm

Moved

Moved from Euspilotus.

… Guy A. Hanley, 22 March, 2010 - 3:48pm

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Euspilotus-Geomysaprinus

Geomysaprinus so (with the prosternal character desription) is the right ID. I couldn't see the carinal striae well in the image, prosternus looked to me more like Euspilotus-type. General body shape and habitat (very few Euspilotus are burrow-dwellers) is for Geomysaprinus. Again, the species name is a big question, something near castanipenniss (???)

… atishe8, 22 March, 2010 - 3:33pm

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keyed out fairly well

to castanipennis so I will move there.

… Guy A. Hanley, 22 March, 2010 - 3:47pm

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A. Tishechkin: "Looks like one of those rufous burrow Euspilotus

"...but can't tell the name even tentatively."

Moved from Saprininae.

… v belov, 18 March, 2010 - 3:52pm

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question with that genus

According to Bousquet's keys, in order to get to Euspilotus the carinal stria and lateral stria on the prosternum have to be united or carinal stria has to end in apical fovea. This species has the carinal stria ending well before the fovea, and never coming in contact with the lateral stria. In this case it leads me to Geomysaprinus...Unfortunately those characters are not showing up well in the photo..

… Guy A. Hanley, 22 March, 2010 - 9:08am

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Moved

Moved from Clown Beetles.

… v belov, 16 March, 2010 - 12:42pm

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Moved

Moved from ID Request.

… v belov, 12 October, 2009 - 9:23am

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