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Schizura concinna Feeding on gray dogwood (Cornus racemosa) leaves. Cornus racemosa,Geotagged,Lepidoptera,Red-humped caterpillar,Schizura concinna,Summer,Swida racemosa,United States,caterpillar,gray dogwood,insect,moth Click/tap to enlarge Promoted

    comments (15)

  1. Looks dangerously beautiful :) Posted 8 months ago
    1. They are both.

      "The larval defensive gland of Schizura concinna (J.E. Smith) is situated in the thorax and consists of two sacs joined by an interglandular neck. Its orifice opens into a transverse invagination of the integument at the cervical margin of the prosternite. The major component of the defensive secretion, formic acid, was identified as itsp-bromophenacyl ester. Ancillary components decyl acetate, dodecyl acetate, and 2-tridecanone from the anterior portion of the gland were identified by GLC and GS-MS." https://link.springer.com/article/10.1007/BF00988232
      Posted 8 months ago
      1. Wow, that’s not one to mess with! Posted 8 months ago
        1. Some can even aim the spray. If that caterpillar is there tomorrow I'm going to see what happens when it is disturbed. Posted 8 months ago
          1. Please do send a keep-alive signal, friend. Posted 8 months ago
            1. Just went out to the dogwood bush and all the caterpilars have left or gone into hiding because it has gotten cold here. Posted 8 months ago
              1. Yet you live. One out of 2 is good for now. Posted 8 months ago
          2. Ohhh! I'm kind of relieved you didn't find it again. Posted 8 months ago
            1. There's a;ways next year. Posted 8 months ago
              1. Daredevil ;) Posted 8 months ago
                1. Merely curious. Posted 8 months ago
                  1. I shouldn't tease you too much because I definitely share your curiosity. Posted 8 months ago
                    1. I'll be careful and keep a plastic shield between me and the caterpillar. We're getting colder weather here, frosts 4 nights in a row so the insects are quickly disappearing. Posted 8 months ago
                      1. Oh, wow...It's that time of year already. I don't want to believe it. I noticed a decline in insect activity over the past week here as well. We haven't had a frost yet, but probably will within the next couple weeks. Posted 8 months ago
  2. Today's Facebook post:

    The red-humped caterpillar (Schizura concinna) is the larva of a moth in the family Notodontidae. It has a large range in North America, spanning from Canada to Florida. It is polyphagous, which means that it eats a wide variety of food. Specifically, it feeds on woody plants; and, if present in large numbers, they can defoliate trees.

    One really fascinating thing about red-humped caterpillars is their odor. They stink! Their peculiar smell is described as being a sharp, acidic smell. The reason for their stench is that they have glands that secrete defensive chemicals consisting of formic acid and acetate. If threatened, a caterpillar will empty its gland by spraying droplets of liquid to the extent that they basically appear to explode into a stinky, sticky mess. This nasty display makes them unpalatable to any sensible predator. {Spotted in Minnesota by JungleDragon moderator, Gary B} #JungleDragon #Redhumpedcaterpillar #Schizuraconcinna

    Check out Gary’s other photos, which include a wonderful smorgasbord of various flora and fauna: https://www.jungledragon.com/user/3383/popular


    Posted 8 months ago

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''Schizura concinna'', the red-humped caterpillar, is a moth of the family Notodontidae. It is found from southern Canada to Florida and California.

Similar species: Moths And Butterflies
Species identified by Gary B
View Gary B's profile

By Gary B

All rights reserved
Uploaded Sep 7, 2020. Captured Sep 7, 2020 10:32 in 4408 Miller Rd, Barnum, MN 55707, USA.
  • Canon EOS Rebel T6
  • f/5.6
  • 1/166s
  • ISO160
  • 100mm