stonefly

views updated May 21 2018

stonefly (salmon fly) Soft-bodied insect with long, narrow front wings and chewing mouthparts, found throughout the world. The aquatic nymphs have branched gills, and the adults, used as bait by anglers, are brown to black. Length: 5–60mm (0.2–2.5in). Order Plecoptera.

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