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Pristerognatha agilana in a Jewelweed Stem? ID is tentative. I'm thinking maybe Pristerognatha agilana? It's the only stem borer I really know for this species. I investigated bore holes in Impatiens capensis (Jewelweed) and found an egg sac and a tiny larva? What do you guys think?  Geotagged,United States Click/tap to enlarge

Pristerognatha agilana in a Jewelweed Stem?

ID is tentative. I'm thinking maybe Pristerognatha agilana? It's the only stem borer I really know for this species. I investigated bore holes in Impatiens capensis (Jewelweed) and found an egg sac and a tiny larva? What do you guys think?

    comments (5)

  1. Cool! It seems like the most likely ID, but I can't be sure. Great documentation! Posted one month ago, modified one month ago
    1. I'm hoping Charley will enlighten me tomorrow, but I've posted them on BugGuide as well.

      I was so surprised to find anything at all in the floppy, old jewelweed stems!
      Posted one month ago
      1. A fun find for sure! Once we get a day where the temp is at least 40F here, I'm going to head out and cut open some stems. There are a bunch of plants I want to investigate. Posted one month ago
        1. Okay, looks like I'm going to have to split this up. The white thing is likely a parasitoid wasp (which emerged from a moth like the aforementioned P. agilana) cocoon . The second thing in frass is probably a dipteran larva! Posted one month ago, modified one month ago
          1. Nice! Posted one month ago

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By Lisa Kimmerling

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Uploaded Jan 23, 2021. Captured in 227 Oakman Rd NE, Oakman, GA 30732, USA.