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Tanner Beetle

Observed: 3rd August 2011 By: martin.j.tattersallmartin.j.tattersall’s reputation in Invertebratesmartin.j.tattersall’s reputation in Invertebrates
cebrio1 1

This creature flew in through the open window into my lighted room late in the evening. It made a terrific racket, buzzing like a chainsaw at idle. I attempted to shepherd it back out, without success. When I got up, there it was floating drowned in the washing up bowl. I had assumed it was a Cockchafer, but this proved not to be the case when I had a close look. It was around 30mm long.

Species interactions

No interactions present.

Species with which Tanner Beetle (Prionius coriarius) interacts


martin.j.tattersall's picture


Thanks Altus silva for the ID. Can you spare a moment to point out the features that distinguish my beast from Cebrio gigas? Always on the look out for tips. Thanks, Martin

altus silva's picture

Cebrio are (almost) Click Beetles...

... So they have hind angles of pronotum very elongated and a pointed backwards prosternum (clearly missing in photo n.2). Also, C. gigas has yellow femora, more slender tarsi and despite the name the male reaches 20 mm at most.

martin.j.tattersall's picture


Altus silva, I do appreciate you taking the time to explain the relevant features - all brilliant learning points for me. Very many thanks. Martin