Here's another picture of a pupa which I think
is an October Caddis. It gives a better idea of what the pupa looks like in the water with its long, swimming legs and antennae.
View attachment 121830
Another interesting habit of the October Caddis larva is its custom of abandoning its case during the month of June to float downstream, au naturel
, before settling down to build a new case. It's hard to imagine that the fish don't take notice of such a large chunk of protein offering itself up for lunch