Amarodytes | |
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Genus: | Amarodytes Régimbart, 1900 |
Amarodytes is a genus of beetles in the family Dytiscidae, containing the following species: [1]
Beetles are a group of insects that form the order Coleoptera, in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 species, is the largest of all orders, constituting almost 40% of described insects and 25% of all known animal life-forms; new species are discovered frequently. The largest of all families, the Curculionidae (weevils) with some 83,000 member species, belongs to this order. Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae eat aphids, scale insects, thrips, and other plant-sucking insects that damage crops.
The Dytiscidae – based on the Greek dytikos (δυτικός), "able to dive" – are the predaceous diving beetles, a family of water beetles. They occur in virtually any freshwater habitat around the world, but a few species live among leaf litter. The adults of most are between 1 and 2.5 cm (0.4–1.0 in) long, though much variation is seen between species. The European Dytiscus latissimus and Brazilian Megadytes ducalis are the largest, reaching up to 4.5 cm (1.8 in) and 4.75 cm (1.9 in) respectively. In contrast, the smallest is likely the Australian Limbodessus atypicali of subterranean waters, which only is about 0.9 mm (0.035 in) long. Most are dark brown, blackish, or dark olive in color with golden highlights in some subfamilies. The larvae are commonly known as water tigers due to their voracious appetite. They have short, but sharp mandibles and immediately upon biting, they deliver digestive enzymes into prey to suck their liquefied remains. The family includes more than 4,000 described species in numerous genera.
Copelatus is a large genus of small diving beetles. There are some 470 described species in the genus, found worldwide, but they are most diverse in tropical South America, Africa and South-East Asia.
Rhantus is a genus of beetle in family Dytiscidae. There are about 100 species distributed worldwide. They often live in pools and marshy habitat types. Several species have colonized oceanic islands and become endemics.
Agabus is a large genus of predatory aquatic beetles in the family Dytiscidae, proposed in 1817 by William Elford Leach and named after Agabus, an early follower of Christianity. The adult beetles are moderate-sized, 5 to 14 mm long. The genus is primarily Holarctic in distribution, with only a few species known from the Afrotropic and Neotropic realms. Three species of Agabus, namely A. clypealis, A. discicollis and A. hozgargantae are endangered according to the IUCN Red List. The division into subgenera is not widely accepted. However, a number of species groups are recognized after the works of David J. Larson and Anders N. Nilsson. The genus is probably polyphyletic or paraphyletic. In a recent study of mitochondrial DNA, Agabus was found paraphyletic with respect to several of the species groups of Platambus, a closely related genus in the tribe Agabini. Lately the taxonomy of the genus has been revised, and some groups of species were transferred from Agabussensu stricto to other genera in the tribe Agabini.
Laccophilus is a genus of water beetle found in nearly every temperate or tropical region in the world including but not limited to Europe, the Near East, the Nearctic, North Africa and the Oriental region. It contains the following species:
Hyphydrus is a genus of diving beetle native to the Palearctic, the Afro-tropical region, the Near East, North Africa. It contains the following species:
Hydaticus is a genus of predatory water beetle belonging to the family Dytiscidae, native to the Palearctic, the Afro-tropical region, the Near East, the Nearctic and North Africa. It contains the following species:
Cybister, is a genus of beetle in family Dytiscidae native to the Old World, North America, and Australia, but has a worldwide distribution. There are approximately 80 species in the genus.
Lacconectus is a genus of beetles in the family Dytiscidae, containing the following species:
Bidessus is a genus of beetles in the family Dytiscidae, containing the following species:
Hydroglyphus is a genus of beetles in the family Dytiscidae, containing the following species:
Hypodessus is a genus of beetles in the family Dytiscidae, containing the following species:
Leiodytes is a genus of beetles in the family Dytiscidae, containing the following species:
Uvarus is a genus of beetles in the family Dytiscidae, containing the following species:
Yola is a genus of beetles in the family Dytiscidae, containing the following species:
Hydrovatus is a genus of water beetles in the family Dytiscidae, containing the following species:
Herophydrus is a genus of beetles in the family Dytiscidae, containing the following species:
Hyphoporus is a genus of beetles in the family Dytiscidae, containing the following species:
Methles is a genus of beetles in the family Dytiscidae, containing the following species:
Suphisellus is a genus of beetles in the family Noteridae, containing the following species:
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