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Bagworm Case - Family Psychidae Bagworms are not really worms, but are caterpillars - they are the immature stage of a moth. They&#039;re called &quot;bagworms&quot; because they construct bags/cases that are covered with pieces of twigs and/or leaves. The caterpillars feed by sticking their heads out of the top of the bag and chewing on nearby leaves or lichens. They live in these bags until they pupate (also inside the bag). Males emerge a little earlier than females, leaving their bag and flying off in search of a mate. Females emerge eyeless, wingless, and legless! So, she remains in her bag, but emits a pheromone to alert males of her presence. Males locate the females and mate. Once mated, a female lays eggs and dies, leaving a bag full of eggs that will hatch the following spring.<br />
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I carefully looked inside of this case and there was a caterpillar in there. It looked reddish, but I couldn&#039;t be sure.  Bagworm Case,Family Psychidae,Geotagged,Spring,United States,bagworm,psychidae Click/tap to enlarge Promoted

Bagworm Case - Family Psychidae

Bagworms are not really worms, but are caterpillars - they are the immature stage of a moth. They're called "bagworms" because they construct bags/cases that are covered with pieces of twigs and/or leaves. The caterpillars feed by sticking their heads out of the top of the bag and chewing on nearby leaves or lichens. They live in these bags until they pupate (also inside the bag). Males emerge a little earlier than females, leaving their bag and flying off in search of a mate. Females emerge eyeless, wingless, and legless! So, she remains in her bag, but emits a pheromone to alert males of her presence. Males locate the females and mate. Once mated, a female lays eggs and dies, leaving a bag full of eggs that will hatch the following spring.

I carefully looked inside of this case and there was a caterpillar in there. It looked reddish, but I couldn't be sure.

    comments (9)

  1. AWESOME! Posted one year ago
    1. Thanks. I'd LOVE to find one on the move someday! So far, I have just found them glued down, but would love to see the little caterpillar crawling around with its case someday. Posted one year ago
  2. Awesome find! Posted one year ago
    1. Thanks Ferdy Posted one year ago
  3. Would this be the same as the ones found in my garden near London UK?.I've often wondered what they are. What does the moth look like please? Posted one year ago
    1. Do you have a photo of it? There are many species of bagworm, but yours would be in the same family at least (Psychidae). Check out this link to see the adults...You’ll notice that while the males look like normal moths, but the adult females look like caterpillars.

      https://bugguide.net/node/view/122/bgimage
      Posted one year ago
      1. Wow! I do don’t realise the number of different ones! Thank you for the link. Fascinating! Posted one year ago
      2. Wow! I didn’t realise the number of different ones! Thank you for the link. Fascinating! Posted one year ago, modified one year ago
        1. You're welcome :) Posted one year ago

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By Christine Young

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Uploaded Jun 10, 2018. Captured Jun 10, 2018 12:08 in 281 Main St S, Woodbury, CT 06798, USA.
  • Canon EOS 80D
  • f/2.8
  • 1/166s
  • ISO800
  • 100mm