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KDA
Member Purpuricenus

Russia
475 Posts

Posted - 28/02/2021 :  15:21:20  Show Profile  Email Poster  Reply with Quote

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Both beetles Derolus pexus?
30 and 25 mm

Capitaine
Scientific Collaborator

France
1702 Posts

Posted - 01/03/2021 :  10:56:53  Show Profile  Email Poster  Reply with Quote
Manifestement 2 mâles et le ratio antennaire 3/4 est différent...

Claude
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cerambyphil
Member Rosalia

France
643 Posts

Posted - 21/03/2021 :  12:29:11  Show Profile  Email Poster  Reply with Quote
According to Hûdepohl (1998), antennomere 3 is 1/4 longer than antennomere 1 and antennomere 4 is as long as antennomere 1 (So antennomere 3 must be 1/4 longer than antennomere 4), pronotum is as long as wide, elytra are 2,2 longer than wide.
I think the smallest is D. pexus male and the largest is more close to the genus Dymasius.
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