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Deer flies really bug phenologist John Latimer

A macro image shows a close-up of a deer fly perched on the edge of a coffee mug. Its front legs are held up as if in a boxing position. It has vibrant green-and-brown eyes and some fuzz on its body.
Charlie Mitchell
/
KAXE/KBXE
A deer fly seems ready to fight while perched on a coffee mug near Marine on St. Croix on July 7, 2024.

During the Phenology Report for the week of July 8, 2025, Staff Phenologist John Latimer welcomes high summer and threatens the lives of encroaching deer flies.

One of my favorite John Latimer traits is his ability to go from extremely wholesome to quite bloodthirsty with very little transitional stages. This week, our beloved Staff Phenologist spoke eloquently about the beautiful peak of butterfly and dragonfly diversity in mid-July, then took an abrupt U-turn to vividly describe his deep-seated enmity for deer flies.

Listen in above for more, and check out last year’s article about identity fraud in fireflies.

Topics

  • Introduction (0:00-0:25)
  • Peak of summer (0:25-1:14)
  • Ripe berries (1:14-2:30)
  • Wildflowers (0:25-1:14, 2:30-9:10)
  • Basswood flowers (9:10-10:06)
  • Shrubs (10:06-12:12)
  • Butterflies (12:12-13:13)
  • Deer flies (13:13-17:48)
  • Lightning bugs (17:48-21:40)
  • Conclusion (21:40-22:09)

What have you seen out there? Let us know: email us at comments@kaxe.org or text us at 218-326-1234.

That does it for this week! For more phenology, <b>subscribe</b> to our Season Watch Newsletter or visit the Season Watch Facebook page.

Funding for this project was provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR).

Charlie Mitchell (she/they) joined KAXE in February of 2022. Charlie creates the Season Watch Newsletter, produces the Phenology Talkbacks show, coordinates the Phenology in the Classroom program, and writes nature-related stories for KAXE's website. Essentailly, Charlie is John Latimer's faithful sidekick and makes sure all of KAXE's nature/phenology programs find a second life online and in podcast form.


With a background in ecology and evolutionary biology, Charlie enjoys learning a little bit about everything, whether it's plants, mushrooms, or the star-nosed mole. (Fun fact: Moles store fat in their tails, so they don't outgrow their tunnels every time conditions are good.)