Predaceous Diving Beetle Representative Species

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predaceous diving beetle representative species Kingdom: Animalia Division/Phylum: Arthropoda Class: Insecta Order: Coleoptera Family: Dytiscidae ILLINOIS STATUS common, native FEATURES Predaceous diving beetles undergo complete metamorphosis (egg, larva, pupa, adult). The larva, called a water tiger, has mouthparts that allow it to puncture prey and suck out fluids. This slender larva ranges from one-fourth to three inches in length. It breathes through the body surface and through two spiracles on the tail. The adult has forewings that are hard and meet in a straight line down the middle of the back when not in flight. The hindwings are membranous and folded under the front wings when not in flight. The body is elongate, oval and streamlined. The hind legs are flattened and fringed with hairs. Antennae are threadlike. The body is black, brown or yellow. BEHAVIORS Predaceous diving beetles live in still water in ponds, lakes and streams. The adults move their legs in unison when swimming and surface for air tail-first. They are often seen flying around lights at night. The female lays eggs in plant stems, producing one generation per year. The pupal stage occurs under stones and plants along the shore. The adult and larva are aggressive and cannibalistic, eating prey items as large as small fishes. HABITATS Aquatic Habitats lakes, ponds and reservoirs; rivers and streams Woodland Habitats none Prairie and Edge Habitats none © Illinois Department of Natural Resources. 2019. Biodiversity of Illinois. .

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Current Classification of the Families of Coleoptera
The Great Lakes Entomologist Volume 8 Number 3 - Fall 1975 Number 3 - Fall 1975 Article 4 October 1975 Current Classification of the amiliesF of Coleoptera M G. de Viedma University of Madrid M L. Nelson Wayne State University Follow this and additional works at: https://scholar.valpo.edu/tgle Part of the Entomology Commons Recommended Citation de Viedma, M G. and Nelson, M L. 1975. "Current Classification of the amiliesF of Coleoptera," The Great Lakes Entomologist, vol 8 (3) Available at: https://scholar.valpo.edu/tgle/vol8/iss3/4 This Peer-Review Article is brought to you for free and open access by the Department of Biology at ValpoScholar. It has been accepted for inclusion in The Great Lakes Entomologist by an authorized administrator of ValpoScholar. For more information, please contact a ValpoScholar staff member at [email protected]. de Viedma and Nelson: Current Classification of the Families of Coleoptera THE GREAT LAKES ENTOMOLOGIST CURRENT CLASSIFICATION OF THE FAMILIES OF COLEOPTERA M. G. de viedmal and M. L. els son' Several works on the order Coleoptera have appeared in recent years, some of them creating new superfamilies, others modifying the constitution of these or creating new families, finally others are genera1 revisions of the order. The authors believe that the current classification of this order, incorporating these changes would prove useful. The following outline is based mainly on Crowson (1960, 1964, 1966, 1967, 1971, 1972, 1973) and Crowson and Viedma (1964). For characters used on classification see Viedma (1972) and for family synonyms Abdullah (1969). Major features of this conspectus are the rejection of the two sections of Adephaga (Geadephaga and Hydradephaga), based on Bell (1966) and the new sequence of Heteromera, based mainly on Crowson (1966), with adaptations.
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Deretaphrus Interruptus Head, Ventral; Fig
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