Scientific classification: Water beetles belong to the order Coleoptera. This creature is in the … Aquatic hydrophilids are notable for their long maxillary palps, which are longer than their antennae. True, or diving, water beetles make up the family Dytiscidae. Water scavenger beetles make up the family Hydrophilidae. Order: Hemiptera Description: Adults can be over 2 inches long, flattened and oval in shape and are basically a green-brown in color. Ponds, streams. Water Scavenger Beetle (Hydrochara spp.) The front wings have a leathery base; the outer wings areas are more membranous with well defined veins. The front legs are adapted to capture and hold prey. Wirligig Beetles: Crawling Water Beetles: Variegated Mud-loving Beetles: Clown Beetles: Minute Moss Beetles: Water Scavenger Beetles: Short-winged Flower Beetles: Lined Flat Bark Beetles: Fireflies: Minute Brown Scavenger Beetles: Round Fungus Beetles: Stag Beetles: Net-winged Beetles: False Darkling Beetles: Blister Beetles: Soft-winged Flower Beetles: Root-eating Beetles Range: Throughout the world They are about one inch long, dark brown in colour with golden highlights and short, but sharp, pincers). Scientific Name: Family Dermestidae; most are found in the wild, but a few species are well known pests. The insect can store a supply of air within its silvery belly, much like a deep-sea diver stores air in a tank. This large beetle lives in water, where it scavenges vegetation and insect parts. Dytiscidae – (able to dive) are known by various common names around the world, including predaceous diving beetles, water beetles and diving beetles). Common Name: Waterbug Scientific Name: Lethocerus sp. Habitat: Found wherever there are stored organic materials. Scientific name: Lethocerus americanus The Giant Water Bug is the biggest bug in Minnesota -- a full 2-inches long and about 1-inch wide. Conservation Status. Pupa of Cyrtobagous salviniae (Calder & Sands). The whirligig beetles, including Macrogyrus striolatus, are named after their habit of swimming in circles on water surfaces. Scientific Name. Hydrophilidae, also known colloquially as water scavenger beetles, is a family of chiefly aquatic beetles. Not listed by IUCN. Hydrophilus triangularis. Whirligig beetles make up the family Gyrinidae. Detailing the physical features, habits, territorial reach and other identifying qualities of the Water Scavenger Beetle. Adult: The adults of Cyrtobagous salviniae measure 2 to 3.5 mm long and are brown during the first five days following emergence before turning shiny black for the remainder of their life. 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