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Part of a nest of Isodontia pelopoeiformis (Apoidea: Spheciformes:
Sphecidae) in a man-made boring in a wood block, showing long-horned
grasshopper prey and wasp's egg. An example of a flower visitor
requiring pre-existing cavities such as old nest galleries of Carpenter
Bees or old beetle larva borings.
photo: Fred Gess
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