Tag Archives: pupa

Cocoon Within a Cocoon Within a Cocoon

The diamondback moth (Plutellidae: Plutella xylostella) is a European species that is now found all across North America, the larvae feeding on various plants in the mustard family (Brassicaceae). Apparently it’s considered a pretty serious pest, but I’d take it … Continue reading

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Marsh Marigold Menagerie

In the spring of 2013, I wrote about the four-toed salamander surveys I was conducting at the time, which involved crawling around in swamps all over northwestern Massachusetts. On June 1, the last day of the survey, Julia tagged along, … Continue reading

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Quality Control

On June 22, I was doing botanical work in a shrub swamp in Southbridge, Massachusetts when I found this 5.5-mm larva on the underside of a highbush blueberry (Ericaceae: Vaccinium corymbosum) leaf: I find little tents like this from time … Continue reading

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Mailbag

People regularly send me photos of mystery objects and other bug-related phenomena to see if I recognize them. Often I’m able to respond with a precise (or approximate) identification, and that’s the end of it. Other times I’m intrigued by the … Continue reading

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A Hidden Masterpiece

Last December, Jennifer Kleinrichert sent me this photo of a polka-dotted larva (prepupa) surrounded by an elaborate silken structure, wondering if I knew what it was: My response: I’m afraid I don’t know this one… I’ve seen a photo of something similar … Continue reading

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Bean Borer

Last August, Julia noticed a few holes in some string beans in the garden. One of holes had droppings pouring out of it, and we could see someone fuzzy inside. I opened this tunnel up for a better look at … Continue reading

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Balloon-faced Flies, Part 3

Twice before, I’ve posted photos of agromyzid flies freshly emerged from their puparia (hardened larval skins in which they pupate), with their faces grotesquely inflated. You may recall that since adult flies have no chewing mouthparts, they emerge from their … Continue reading

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