Denticollis linearis and Donacia vulgaris

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Denticollis linearis and Donacia vulgaris

Postby wirralbirder on Thu Aug 29, 2013 7:11 pm

Denticollis linearis and Donacia vulgaris:

Hi All,

I need confirmation of these two species below before sending the records off to RODIS.

Harry

02 Leaf Beetle ( Donacia vulgaris ) Burton Mere Wetlands Jun 06th 2013 Img3774.JPG
Leaf Beetle (Donacia vulgaris) ?? - Burton Mere Wetlands - 6th June 2013


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16 Click Beetle ( Denticollis linearis ) Burton Mere Wetlands Jun 06th 2013 Img3779.JPG
Click Beetle (Denticollis linearis) ?? - Burton Mere Wetlands - 6th June 2013
wirralbirder
 
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Re: Denticollis linearis and Donacia vulgaris

Postby DonSten on Fri Aug 30, 2013 9:55 am

The Denticollis linearis is correct but the Donacia doesn't look like D.vulgaris - not compared to my specimens anyway. It could be D.semicuprea, which is a fairly common species, but the angle of the photo is not right to see some features.

Cheers,
Don

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Re: Denticollis linearis and Donacia vulgaris

Postby wirralbirder on Fri Aug 30, 2013 11:44 am

Hi Don,

Thanks for your suggestion about D.semicuprea. This was a possibilty that I had considered. On the Watford Coleoptera Group site it states that D.semicuprea was unique in having a longitudinal pronotal groove.
This groove appears to be present on my example.

I will post two other images of the beast.

Cheers,
Harry

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