Predaceous Diving Beetles (Water Tigers) Species in the beetle family Dytiscidae. There are hundreds of species in North America. At the water’s surface, the beetles project their antennae out of the water … Marko Mutanen. Water Scavenger Beetle, Berosus sp. This large beetle lives in water, where it scavenges vegetation and insect parts. Today I’m going to focus on two aquatic beetle groups that a lot of people have a hard time telling apart from one another: the predaceous diving beetles (family Dytiscidae, the dytiscids) and the water scavenger beetles (family Hydrophilidae, the hydrophilids). The environments in which many water scavenger beetles species are known to live. Species in the genera Abedus, Belostoma, and Lethocerus. The name says it all. Water scavenger beetles (family Hydrophilidae) are primarily tropical aquatic beetles. Water Scavenger Beetles and their offspring prey on their smaller aquatic neighbors, the adults also scavenge, resulting in a food pyramid that includes decaying vegetation and dead animal tissue. While other water beetles swim by alternating their leg movements, the diving beetle moves its legs together like oars. University of Oulu. They live in ponds, shallow lake areas, and still areas of rivers and streams. The water scavenger beetle has triangular yellow markings on the sides of the abdomen and usually swims near the bottom of shallow pools. Giant Water Scavenger Beetle - Hydrophilus ovatus: Giant Water Scavenger Beetle - Hydrophilus ovatus: Giant Water Scavenger Beetle - Hydrophilus ovatus: Laccobius agilis: Laccobius agilis: Laccobius minutoides: Laccobius minutoides: Laccobius minutoides: Laccobius minutoides: Paracymus confluens: Elliptic Water Scavenger, Tropisternus ellipticus: California Pink Glowworm, Microphotus angustus: Douglas Fir Glowworm, Pterotus obscuripennis: Pyropyga nigricans : Lathridiidae (Minute Brown Scavenger Beetles) Meloidae (Blister Beetles) The insect can store a supply of air within its silvery belly, much like a deep-sea diver stores air in a tank. Like the true water beetles, water scavenger beetles must find a way of supplying themselves with oxygen while they forage underwater. They are generally predators, however some eat algae. Select an environment to see its water scavenger beetles species checklist. The wing covers often reflect faint greenish or purplish hues. Scientific Name: Hydrophilus triangularis Say Order: Coleoptera (Beetles) Family: Hydrophilidae (Water scavenger beetles) Description and Distinctive Features: The adult giant water scavenger beetle is a glossy black, smooth bodied beetle that is 27-40 mm long. Giant Water Bugs. Water Scavenger Beetles. They are, in turn, eaten by fish and targeted by many parasites. Water Scavenger Beetle 5 Hydrophilidae (adult) Water Scavenger Beetle 5 Psephenidae (larvae) Water Penny 4 Chaoboridae Phantom Midge 8 Chironomidae Non-biting Midge 6 pale forms 8 red forms Culicidae Mosquito 8 Athericidae Aquatic Snipe Fly 2 Dixidae Dixid Midge 1 Blephariceridae Net-winged Midge 0 Ceratopogonidae Biting Midge 6 Larvae of water scavenger beetles (Coleoptera: Hydrophiloidea) are adapted to a wide variety of aquatic habitats, but little is known about functional and evolutionary aspects of these adaptations. The size of the Water Scavenger Beetle … Year: 2013. cc-by-nc Water Scavenger Beetle Habitats. 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