Chiggers are the larvae (babies) of harvest mites or Trombiculidae. Closely related to ticks, these mites are arachnids, part of the same family that includes spiders and scorpions.
Chiggers like legs. They are repelled by DEET, so spray it on (it's found in many bug repellents). This picture of fresh chigger bites shows how socks and shoes are nothing compared to good bug spray for preventing chigger bites.
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