Dragonfly nymph ID.

[Gerel]

Hi,

I was walking along the edge of my local stream yesterday when I stood on a patch of soft silt and several of these nymphs came crawling out.



Very hairy and covered in silt they had been completely hidden below the surface right at the margin of the water.

I rinsed a bit of the muck off one, to get a better look.



From the look, size (approx. 40mm long) and habitat (acidic, upland stream), I am guessing at Golden-ringed dragonfly (Cordulegaster boltonii) although I have never seen an adult here.

Can anyone confirm or give correct ID.

Regards

Steve

[earthdragon64]

It certainly looks good for a Golden-ringed, the shape and size is right, the eyes are quite small, which is also right. The shape of the labial mask is right, and I think I can just about make out the charactaristic irregular teeth on the labial palps.

Habitat sounds good as well, I've found Golden-ringed nymphs in what are no more than muddy puddles, they do seem to like mud. Nice clear photos as well.

[Gerel]

Thanks earthdragon64,

I assume from the size that these are almost full grown. If they are not dependent on running water would it be acceptable to transfer one to a tank, I'd love to witness one emerging and becoming an adult.

Steve

[ollyk]

I think these nymphs spend up to 5 years developing in a fairly specialised environment and IMO without knowing a lot about their requirements, they would be very difficult if not impossible to raise in captivity. I would just leave them be.

I think having these local to you is every bit as good as raising in captivity. I think you are certain to see the adults now you know about them!

[Gerel]

Fair enough, that's really what I was asking.

regards

Steve