"Yuji Sakuma" wrote in message
.. .
Kevin,

I used to look at SER's or "significant event reports" for nukes and
I
recall one in particular that caught my eye maybe 15 or 20 years
ago. The
plant at LaCrosse, Wisconsin, reported an unscheduled shutdown due
to an
electrical short in a transformer. The cause was identified as a
large
number of mayflies landing on or being driven onto it during a
rainstorm.
It must have been one hell of a hatch to do that. I don't know if
they were
Hexagenia, the report did not identify the species g. Note: I am
not a
cheesehead and have no reason to boast about their mayfly hatches.

One occasionally hears stories about communities near the Mississippi
or the Wisconsin having to remove the Hexagenias from the roads with
snow plows. I've never seen them that thick myself but I've seen
hatches heavy enough to make it seem plausible. The bug in your story
would undoubtedly be the Hex.

When Jeff Miller was here last June we had a couple of Hexagenias fly
into our camp on the first night. We had a hard time convincing him
that it they really were mayflies.

Wolfgang
bats are hairy.....mayflies ain't.