Facts: Water scavenger beetles are also common in a wide range of
sizes and are generally brown or black. Some water scavenger beetles have
a conspicuous ridge on the underside of the thorax. This ridge easily
distinguishes them from predaceous diving beetles. Adults usually feed on
decaying matter; larvae are usually predaceous. To breathe, water
scavenger beetles hold an air bubble on the undersurface of the body.
These beetles come to the water surface head first.
Photo credit: Bastiaan (Bart) Drees
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Last modified: August 10, 2001 by John A. Jackman