Confirmation, please.
KWN 473. 2nd visit with Tom Kahl
Caddisfly cases. Empty? VPMon KWN 473
In the field we thought these were caddisfly larvae but after later examination of photos, we weren't sure.
They were black, about 1 cm long, and they were swimming in groups, with several hundred in each group. (Photo was taken the following day.)
RUB019_DuclosT_2019 vist 3