Flyfishing Entomology


Life Stage Characteristics


Amphipoda (Gammaridae)



        -  Body segments: 11 (one for each paired appendage)

        -  Color: semi-transparent, so they take on the color of the food they ingest, usually gray, tan, or olive

        -  Size: 5-20 mm at maturity

        -  Shape: laterally compressed; head has two longish antennae; tail section has two short protrusions

Freshwater amphipods (commonly called scuds) are extremely abundant in certain lakes.  They have 11 body segments, with a pair of ventral appendages on each.  They are sometimes referred to as “side-swimmers.”

Created: 08/04/2004   Last modified: 10/31/2014    www.FlyfishingEntomology.com