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A large black distinctive Flower Fly with tinted wings and 3 yellow bands on each side of the abdomen. Lateral hair on the thorax and abdomen is also yellow. This fly was about 11 mm in length and is a not too convincing wasp mimic. It is a flower fly of the Pacific Northwest Coast. Family Syrphidae, Subfamily Eristalinae.
On composite flowers in wooden planters along the dock. Ketchikan, Alaska.