Peter Pearson's picture

Caddis fly

Observed: 14th October 2012 By: Peter PearsonPeter Pearson’s reputation in InvertebratesPeter Pearson’s reputation in InvertebratesPeter Pearson’s reputation in InvertebratesPeter Pearson’s reputation in Invertebrates
Caddis fly
Description:

One of many Caddis flies that had emerged from the River Brett and were resting on riverside plants.They were reluctant to fly when disturbed dropping of the plants to disappear into the undergrowth

Identifications
Species interactions

No interactions present.

Comments

nightfly's picture

Hi Malyon,It looks very like

Hi Malyon,

It looks very like Anabolia nervosa but a bit short looking making me wonder if it might be the slightly smaller A.brevipennis.

Barnard and Ross give forewing length of 10-15mm for nervosa and 8-10mm for brevipennis. You didnt happen to take a measurement or maybe just hazard a guess at the size?

The pale marking and dot on the wing are on nervosa in the photo in the book, just as above but the above one looks more squat and stout. Flight time is right for both.

Cathal.

inopinatus's picture

Anabolia nervosa

I don't think it's hairy enough to be brevipennis - I think this is Anabolia nervosa. Size and shape can be quite variable.

nightfly's picture

My only doubt regarding the

My only doubt regarding the species, because it looks so good for A. nervosa was its less elongated form and the fact that I hadnt seen A. brevipennis before and didnt have a good reference pic.

Thanks Inopinatus for the confirmation, Ive seen the variability in form in other caddis also.

Cathal.

nightfly's picture

I wonder why the NBN map and

I wonder why the NBN map and encyclopedia things didnt appear for A. nervosa on this ID?

Cathal.