Denticollis linearis and Donacia vulgaris

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wirralbirder
Posts: 323
Joined: Thu Jul 31, 2008 9:50 am

Denticollis linearis and Donacia vulgaris

Post by wirralbirder »

Denticollis linearis and Donacia vulgaris:

Hi All,

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

Harry

Leaf Beetle (Donacia vulgaris) ?? - Burton Mere Wetlands - 6th June 2013
Leaf Beetle (Donacia vulgaris) ?? - Burton Mere Wetlands - 6th June 2013
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Click Beetle (Denticollis linearis) ?? - Burton Mere Wetlands - 6th June 2013
Click Beetle (Denticollis linearis) ?? - Burton Mere Wetlands - 6th June 2013
DonSten
Posts: 84
Joined: Thu Jul 31, 2008 9:50 am

Re: Denticollis linearis and Donacia vulgaris

Post by DonSten »

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

wirralbirder
Posts: 323
Joined: Thu Jul 31, 2008 9:50 am

Re: Denticollis linearis and Donacia vulgaris

Post by wirralbirder »

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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