Trout-stream Beetles


Summary 2

Amphizoa is a genus of beetles, placed in its own family, Amphizoidae. The vernacular name "trout-stream beetle" comes from the original finding of A. insolens and A. lecontei in high mountain streams, although other species occur at lower elevation. They are notable as a possible intermediate stage between terrestrial and aquatic beetles; while living in the water, they are not good swimmers and physically resemble ground beetles more than other types of water beetle.

SoCal Status 3

There are a few records of Amphizoidae in BugGuide for California, but none in SoCal.

One species is known from area per The California Beetle Database .
Amphizoa insolens

Sources and Credits

  1. (c) Museum of Comparative Zoology, Harvard University, some rights reserved (CC BY-NC-SA),
  2. (c) Wikipedia, some rights reserved (CC BY-SA),
  3. (c) BJ Stacey, some rights reserved (CC BY-SA)

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