| Agabus brunneus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Dytiscidae |
| Genus: | Agabus |
| Species: | A. brunneus |
| Binomial name | |
| Agabus brunneus Fabricius, 1768 | |
Agabus brunneus, the brown diving beetle, [1] is a species of water beetle in the family Dytiscidae.
Adult beetles are 9 millimetres (0.35 in) in length.
The species lives in streams, mainly in Portreath (Portreath Stream), New Forest, and Dorset (in River Frome). [2]
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.
Stag beetles is a family of about 1,200 species of beetles in the family Lucanidae, currently classified in four subfamilies. Some species grow to over 12 centimetres, but most to about 5 cm (2 in).
The whirligig beetles are a family (Gyrinidae) of water beetles that usually swim on the surface of the water if undisturbed, though they swim underwater when threatened. They get their common name from their habit of swimming rapidly in circles when alarmed, and are also notable for their divided eyes which are believed to enable them to see both above and below water. The family includes some 700 extant species worldwide, in 15 genera, plus a few fossil species. Most species are very similar in general appearance, though they vary in size from perhaps 3 mm to 18 mm in length. They tend to be flattened and rounded in cross section, in plain view as seen from above, and in longitudinal section. In fact their shape is a good first approximation to an ellipsoid, with legs and other appendages fitting closely into a streamlined surface.
The Haliplidae are a family of water beetles who swim using an alternating motion of the legs. They are therefore clumsy in water, and prefer to get around by crawling. The family consists of about 200 species in 5 genera, distributed wherever there is freshwater habitat; it is the only extant member of superfamily Haliploidea. They are also known as crawling water beetles or haliplids.
Amphizoa is a genus of aquatic beetles in the suborder Adephaga, placed in its own monogeneric family, Amphizoidae. There are five known species of Amphizoa, three in western North America and two in eastern palearctic. They are sometimes referred to by the common name troutstream beetles.
Surfing on Sine Waves is a studio album by Polygon Window, a pseudonym for the English electronic music producer Richard D. James, better known by the alias Aphex Twin. It was originally released on 11 January 1993 by Warp. It is the second release in Warp's Artificial Intelligence series. The 2001 reissue edition includes the previously unreleased tracks "Portreath Harbour" and "Redruth School".
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Portreath is a civil parish, village and fishing port on the north coast of Cornwall, England, United Kingdom. The village is about three miles (5 km) northwest of Redruth. The village extends along both sides of a stream valley and is centred on the harbour and beach. West of the harbour entrance and breakwater are two sandy beaches that are popular with holidaymakers, surfers and naturists.
Remote Radar Head Portreath or RRH Portreath is an air defence radar station operated by the Royal Air Force. It has a coastal location at Nancekuke Common, approximately 1.25 kilometres (0.78 mi) north east of the village of Portreath in Cornwall, England.
Water-penny beetles are a family of 272 species of aquatic beetles found on all continents except Antarctica, in both tropical and temperate areas. The young, which live in water, resemble tiny pennies. The larvae feed – usually nocturnally – on algae on rock surfaces. The presence of water-penny larvae in a stream can be used as a test for the quality of the water, as they are pollution-sensitive. They cannot live in habitats where rocks acquire a thick layer of algae, fungi, or inorganic sediment. Therefore, their presence along with other diverse phyla signifies good-quality water. They are around 6 to 10 millimeters in length.
Coccinellidae is a widespread family of small beetles ranging in size from 0.8 to 18 mm. The family is commonly known as ladybugs in North America and ladybirds in Britain and other parts of the English-speaking world. Entomologists prefer the names ladybird beetles or lady beetles as these insects are not classified as true bugs.
The Mycetophagidae or hairy fungus beetles are a family of beetles in the large suborder Polyphaga. The different species are between 1.0 and 6.5 mm in length. The larvae and adults live in decaying leaf litter, fungi, and under bark. Most species feed on fungi. Worldwide, the 18 genera contain around 200 species.
No. 277 Squadron RAF was a Royal Air Force Squadron formed as an air-sea rescue unit in World War II.
Hungerford's crawling water beetle is a critically endangered member of the Haliplidae family of water beetles. The US Fish and Wildlife Service Draft Recovery Plan for the species published August 2004 estimates roughly 1000 individuals are present in the wild. In 2010, a five-year summary report by the United States Fish and Wildlife Service found the population to be essentially unchanged.
Godrevy Head to St Agnes is a coastal Site of Special Scientific Interest (SSSI) in north Cornwall, England, UK, noted for both its biological and geological characteristics. A number of rare and scarce plant species can be found on the site, along with many breeding seabirds.
The deforestation in British Columbia has occurred at a heavy rate during periods of the past, but with new sustainable efforts and programs the rate of deforestation is decreasing in the province. In British Columbia, forests cover over 55 million hectares, which is 57.9% of British Columbia's 95 million hectares of land. The forests are mainly composed of coniferous trees, such as pines, spruces and firs.
Elmidae, commonly known as riffle beetles, is a family of beetles in the superfamily Byrrhoidea described by John Curtis in 1830. Both adults and larvae are usually aquatic, living under rocks in fast-flowing shallow areas of streams, such as riffles, feeding on algae and biofilms. There are more than 150 genera and 1,500 described species in Elmidae. The oldest record of the group is Cretohypsilara from the Cenomanian aged Burmese amber.
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Epimetopidae is a family of semi-aquatic beetles found on the edges of streams and shallow freshwater ponds. These beetles are shorter than half a centimeter have a pronotum with a central projection forming a shelf above the head. On the underside of the abdomen only four sternites are visible. There are less than a hundred species in three genera, Epimetopus which is restricted to the New World, mostly Neotropical, Eupotemus with two Afrotropical species and Eumetopus with some Oriental species.
Mount Hawke and Portreath is an electoral division of Cornwall in the United Kingdom and returns one member to sit on Cornwall Council. The current Councillor is Joyce Duffin, the deputy leader of the Liberal Democrats on the council.
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