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Blog Archives
Blister Beetles Defoliating
This plant was being devoured by dozens of these attractive blister beetles. Above I’ve caught one with a leaf fragment in its mouth. Below, you can see how they’ve stripped a branch clean. The frass seems to be exiting just about as fast as the plant goes in (must be a good source of fiber).
As these pictures show, the plant was literally crawling with these beetles.
The dark backgrounds here are an effect of the camera flash. This was actually happening in broad daylight. How are they able to risk doing that? Blister beetles are so named because they defend themselves with a caustic compound, cantharidin, found in their blood. Predators soon learn to avoid them.
Posted in Featured Photos
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