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Dead mayflies, July 2nd, 2006 - Trempeleau, Wisconsin |
On June 30th, 2006, I was en route to an artists’ retreat outside of
Duluth, Minnesota. On the way, I
had planned to spend a couple nights in a very unique 19th century
hostelry, the Trempeleau Hotel, on the Mississippi River (north of La Crosse) in Trempeleau,
Wisconsin.
That evening, as I was getting ready for bed, I noticed lots
of bugs flying against my window screen. The next morning, the sidewalk was
covered with dead, winged insects.
I asked a local in the laundromat around the corner what they were, and
the elderly gentleman told me all about the annual Mayfly Hatch.
The nymphs (larvae) of the Mayfly live and develop
underwater, in the muddy bottoms of rivers and streams. For a couple days in
the summer, they leave the river and become adults, which mate in dancing swarms
of winged frenzy after the sun goes down.
They only live a couple days, at most, during which time they lay their
eggs over water and die.
They’re harmless, but sometimes the bridges across the river
have to be shut down when the layer of smashed, dead bugs become too slippery
for safe travel. This particular year the hatch was so huge it showed up on the
National Weather Service’s Doppler radar.
On July 1st,
the Trempeleau Hotel hosted a small rock concert at their outdoor stage
featuring Blue Oyster Cult. The
concert started well before dark and the hotel grounds were packed with people
sitting on blankets or in lawn chairs.
The music was great, but long about
dark, the second night's swarm of mayflies arrived. I’ll never forget the surreal sight of thousands of flying
insects dancing (and mating) to Don’t Fear the Reeper in the sky overhead. That
song was absolutely perfect for the natural phenomenon of the brief and frantic
“love story” taking place above and around us. The crowd became a sea of flailing arms as
people tried in vain to keep the annoying bugs out of their hair. The band
played a few more songs after that, and it was the first time I was ever glad
for a concert to be over.
The next morning I went out in the street and took pictures
(above) of the mounds and drifts of dead mayflies, especially thick under the light
poles. They smelled like dead fish.
Many months later, I was surprised to see a short article about the
unusually large Mayfly Hatch of 2006 in the National Geographic. It’s a travel memory I’ll never forget…
a bit of serendipity, being in the right place at the right time to witness
Nature Living Large.