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| 1 | 2 |  » Stats |
Members: 50,149
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Top Poster: glsammy (15,069)
| | Welcome to our newest member, TransAmDan | |  | 
02-06-2010, 05:29 PM
| | Officer of the Wild Empire | | Join Date: Sep 2007 Location: Caldbeck, Cumbria
Posts: 766
| | | Definately a cantharid beetle
10mm long. I thought this was C.rustica but the cwg website says the fore tibia is black, at least in the basal half - whereas this is all red. C.pellucida & C.nigricans have red foretibiae but with them the thorax is red. C.nigra has all red legs. What do the experts think ?   |
02-06-2010, 06:32 PM
|  | Commander of the Wild Empire | | Join Date: Jan 2007 Location: London
Posts: 1,011
| | | Re: Definately a cantharid beetle
Am no expert but the keys I have suggest that front tibia red does rule out rustica. If this was >8mm then keys lead to C. nigricans, but it is quite dark for this sp. |
02-06-2010, 08:04 PM
| | Officer of the Wild Empire | | Join Date: Sep 2007 Location: Caldbeck, Cumbria
Posts: 766
| | | Re: Definately a cantharid beetle
Hi Tristan
Also the C.nigricans shown on the cwg website has an all red thorax. I don't know whether this is always the case.
Peter |
02-06-2010, 08:37 PM
| | Commander of the Wild Empire | | Join Date: Jan 2007 Location: London
Posts: 1,011
| | | Re: Definately a cantharid beetle
Seems like C. nigricans and pellucida are variable in this respect and can have an unmarked thorax or a single dark mark |
03-06-2010, 08:54 AM
| | Officer of the Wild Empire | | Join Date: Sep 2007 Location: Caldbeck, Cumbria
Posts: 766
| | | Re: Definately a cantharid beetle
I've found several more of these with identical markings and feel confident that they are C.nigricans. There are lots of photos of it on the internet with similar dark marks on the thorax. Also abdominal sternites 1-4 are black, which distinquishes it from C.pellucida.  | | |
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