"Goat" wrote in message news:oNwSd.17464$uc.15883@trnddc01...
I have been looking for temperatures associated with insect hatches.

A water temp of 13-14 degrees Celcius seems to be the magic number
down this way.
(Purely anecdotal of course). There are sparse hatches at lower temps
and typically of
midge (coldest) and caenis ... as the temps rise though more and
larger species come off.

Steve