Hydrophilidae, also known colloquially as water scavenger beetles, is a family of beetles. Aquatic hydrophilids are notable for their long maxillary palps, which are longer than their antennae. Severa

Hydrophilus piceus is a species of beetles in the family Hydrophilidae, the water scavenger beetles. This very large aquatic beetle is found in the Palearctic and is known by the common name great sil