Swarm of mayflies cover police car, bridge in viral photos

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Swarm Of Mayflies Cover Police Car, Bridge In Viral Photos

'Tis the season for mayfly onslaughts, and, on Sunday night, the situation in Havana, Illinois became so serious it endangered area motorists, reports WCMH.

A bridge that stretches over the Illinois River was completely overrun with the insects, resulting in accidents and immobilized cars.

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On Monday morning, the Havana Police Department issued a warning on Facebook, writing, "Last night there was an invasion of Mayflies that has caused the bridge to be very dangerous. At one point they had piled 6 inches high and when ran over, became very slick."



The post also noted that workers from both the transportation and street departments were working to clear the area.

Get up close and personal with the Mayfly:

4 PHOTOS
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Mayflies
Long-tailed mayflies (Palingenia longicauda) dance around each other in large groups on the surface of the Tisza river near Tiszafured, 150km east of Budapest, early evening on June 13, 2011. The larvae live under water for three years, and then millions of these short-lived mayflies engage in a frantic rush to mate and reproduce before they perish in just a few hours during 'Tiszaviragzas' or Tisza blooming season from late spring to early summer every year. The species was once widespread across Europe, but now have disappeared on the a large part of the continent. AFP PHOTO / PETER KOHALMI 
Long-tailed mayflies (Palingenia longicauda) dance around each other in large groups on the surface of the Tisza river near Tiszafured, 150km east of Budapest, early evening on June 13, 2011. The larvae live under water for three years, and then millions of these short-lived mayflies engage in a frantic rush to mate and reproduce before they perish in just a few hours during 'Tiszaviragzas' or Tisza blooming season from late spring to early summer every year. The species was once widespread across Europe, but now have disappeared on the a large part of the continent. AFP PHOTO / PETER KOHALMI (Photo credit should read PETER KOHALMI/AFP/Getty Images)
Long-tailed mayflies (Palingenia longicauda) dance around each other in large groups on the surface of the Tisza river near Tiszafured, 150km east of Budapest, early evening on June 13, 2011. The larvae live under water for three years, and then millions of these short-lived mayflies engage in a frantic rush to mate and reproduce before they perish in just a few hours during 'Tiszaviragzas' or Tisza blooming season from late spring to early summer every year. The species was once widespread across Europe, but now have disappeared on the a large part of the continent. AFP PHOTO / PETER KOHALMI (Photo credit should read PETER KOHALMI/AFP/Getty Images)
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