squirrel's picture

Weevil

Observed: 18th May 2010 By: squirrelsquirrel’s reputation in Invertebratessquirrel’s reputation in Invertebratessquirrel’s reputation in Invertebratessquirrel’s reputation in Invertebrates
DSC_0022.jpg
Description:

quite a lot about on dock and nettle about 8mm length

Identifications
Species interactions

No interactions present.

Species with which Green Nettle Weevil (Phyllobius (Metaphyllobius) pomaceus) interacts

Comments

AlanS's picture

Just to be clear, I do mean P. virideaeris

i.e. NOT P. roboretanus, a much smaller species.

The name P. virideaeris was formerly applied to what is now called P. roboretanus, and confusion continues.

Alan

Martin Harvey's picture

tricky

Thanks for highlighting this one again Alan, and I agree it is hard to be certain of which species it is.

P. pomaceus does indeed have 'teeth' under the femora, but like you I'm not convinced that the teeth would be visible from the angle of the photo. I have specimens of P. pomaceus with reddish antennae, so I don't think that helps much.

The legs in the photo above look darker than they normally are for P. roboretanus or P. virideaeris, but again leg colour can vary.

P. roboretanus is much smaller than P. pomaceus, but I thought P. virideaeris was similar in size to P. roboretanus - Mike Morris's RES key gives 2.6-4.5mm for roboretanus and 3.7-5.0mm for virideaeris. P. pomaceus is 7.5-9.0mm, which matches the 8mm given above for this individual.

I still think that P. pomaceus is the most likely species, but there does seem room for doubt and perhaps we should be cautious and re-identify it just to genus level.

See also:
http://www.thewcg.org.uk/idaids/roboretanusvirideaeris.htm

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Entomologist and biological recorder