Insects in Winter (DuPage County, IL)

• Diapause:
  • Freeze avoidance: produce glycerol, ethylene glycol, sugars, and antifreeze proteins to supercool; avoid contact with ice.
  • Freeze tolerance: ice-nucleating proteins promote extracellular freezing.
  • Diapause as egg:
    • Evergreen Bagworm (bag) youtube
    • Black-legged Meadow Katydid youtube
    • Chinese Mantis

  • Diapause as larva:
    • Great Spangled Fritillary
    • Cattail Moth
    • Isabella Tiger Moth (Wooly Bear)
    • Goldenrod Gall Fly youtube
    • Diapause as nymph:
      • Banded Garden Argiope

    • Diapause as pupa:
      • Black Swallowtail
      • Virginia Tiger Moth (Yellow Bear)

    • Diapause as adult:
      • Baptisia Weevil
      • Bald-faced Hornet
      • Mourning Cloak; Question Mark

  • Burrow beneath freeze line:
    • Click Beetle

  • Stay in water as larvae:
    • Mayflies; Damselflies

  • Die and repopulate:
    • Oleander Aphid
    • Painted Lady

  • Migrate:
    • Monarch Butterfly
    • Wandering Glider: cross oceans

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