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Chalybion californicum (Blue Mud Wasp) is a species of bees & apoid Wasps in the family sphecid wasps. They are native to The Nearctic. They visit flowers of trumpet creeper, pea family, Queen Anne's lace, and sweet fennel. They are diurnal.

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EOL has data for 14 attributes, including:

Known occurrences, collected specimens and observations of Blue Mud Wasp. View this species on GBIF