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Photo#1626293
Tenebrionidae, dorsal - Centronopus calcaratus
Copyright © 2019 MJ Hatfield

Tenebrionidae, dorsal - Centronopus calcaratus
Jani Wood, Jefferson County, Iowa, USA
July 25, 2018
Size: 15+ mm
I want to call this Centronopus calcaratus in part because I can't figure out what it actually is. It's within the range of length and found under bark (I know, a lot of them are). The front tibia, as far as I can see on several photos, does not have the spine shown here.

Thanks for an ID.

Images of this individual: tag all
Tenebrionidae, dorsal - Centronopus calcaratus Tenebrionidae, lateral - Centronopus calcaratus
Contributed by MJ Hatfield on 10 January, 2019 - 7:04pm
Last updated 9 February, 2019 - 10:00am

spot on.
sexually dimorphic tibial armature is rather common across insects

Moved from Darkling Beetles.
… v belov, 9 February, 2019 - 10:00am

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