Insect identification > Coleoptera > True Coleoptera > Water-scavenger beetles

Water-scavenger beetles

Family Hydrophilidae (water-scavenger beetles). - The water-scavenger beetles occur in the same types of stream and pond as the carnivorous diving beetles, which they greatly resemble. The outline, however, is usually a little more elongately oval; the antennae are club-shaped, and in addition to other structural differences they obtain air by raising the head slightly above the surface and collecting a film of it over the under surface of the body, where it is retained by a close coating (pubescence) of fine hairs.

They feed on decaying animal and plant material for the most part, though sometimes taking to living plants and insects. Some species may be about two inches in length. They are of little economic importance.