A large Bee Fly with a distinctive wing pattern. Note the large, wrap-around eyes. Size is 12 to 19 mm.
Found in open areas, meadows, residential areas. June to September. Larva is a parasitoid of carpenter bees. Female lays eggs at entrance of carpenter bee nests. Larvae waits until carpenter bee's larvae reach the pupal stage to parasitize it. So they may be considered a beneficial insect to have around if you have a carpenter bee problem.
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