orangehoof's picture

Caddis fly

Observed: 8th September 2012 By: orangehooforangehoof’s reputation in Invertebratesorangehoof’s reputation in Invertebratesorangehoof’s reputation in Invertebratesorangehoof’s reputation in Invertebrates
IMGP0020 (2)
IMGP0017 (2)
IMGP0014 (2)
Description:
Identifications
Species interactions

No interactions present.

Comments

Donald Hobern's picture

Anabolia nervosa

In case there is any remaining confusion, the species I am suggesting is in family Limnephilidae, subfamily Limnephilinae, tribe Limnephilini, species Anabolia nervosa (Curtis, 1834) - see here.

Identification based on Barnard and Ross, "The adult Trichoptera (caddisflies) of Britain and Ireland", well worth getting...

Donald Hobern

nightfly's picture

Hi Donald,Just looking at

Hi Donald,

Just looking at images of Anabolia nervosa against a Potamophylax caddis and the latter appears to resemble the above insect closer? Images in the 'Guide to the adult caddisflies or sedge flies' by Peter Barnard and Emma Ross 2008.

Cathal.

Donald Hobern's picture

Anabolia or Potamophylax (or, inevitably, something else?)

Hi Cathal - you may well be right. Potamophylax was the other genus that I looked at seriously.

I ended up swayed towards Anabolia because of the overall tooled leather appearance of the forewings and the slightly fluted termen, which seemed to match the pictures I could find of Anabolia better. The venation is pretty close for both genera as far as I can see.

Hmmmm - these do benefit from being in the hand for closer inspection...

Best wishes,

Donald Hobern

nightfly's picture

The reason this one caught my

The reason this one caught my attention is because I have seen many Potamophylax before but didnt know what they were til Wednesday when a friend gave me the caddisfly guide mentioned above. I was fairly familiar with the Halesus caddisflies and I always thought these other ones were quite similar. As far as I can see the halesus have pale cells containing dark streaks and the Potamophylax have dark cells containing pale streaks?

I just thought the above one was very similar to the image of Potamophylax and I couldnt see the streaks withinthe cells of Anabolia nervosa. Thought the wing shape was quite different also- more pointed and narrow on A. nervosa. I am only looking at one or two images of insects I am not experienced on so I might be speaking too quickly. Cheers Donald.

Cathal.

nightfly's picture

Had another look Donald, I

Had another look Donald, I see the close similarity (to my inexperienced eye anyway) of both genus to this one. The image of Potamophylax which I have at my disposal right now, something I know I have photographed many times, seems to have markings very like the above fly but the wing shape appears to be closer to Anabolia nervosa- not as round ended as potamophylax? Maybe someone else will contribute to this one. I love caddisflies but I do find them tricky.

I might add, the pic of A. nervosa in the caddisfly guide I am looking at could be better quality, its a mating pair and its not perfectly focused. I might need to view more pics before I go IDing or unIDing them.....

Cathal.