Water survey 30cased caddis fly larvae

Water survey 30cased caddis fly larvae

Observation - Water survey 30cased caddis fly larvae. Description: The warden at the nature reserve asked me to post this picture of a cased caddis fly larvae. We would like further details if possible regards what type it is (it looks very different from the 3 types: A, B and C on my simple identification guide)

The warden at the nature reserve asked me to post this picture of a cased caddis fly larvae. We would like further details if possible regards what type it is (it looks very different from the 3 types: A, B and C on my simple identification guide)