The Tobias' caddisfly (Hydropsyche tobiasi) is an extinct species of caddisfly which lived on the River Rhine between Mainz and Cologne.
The caddisflies, or order Trichoptera, are a group of insects with aquatic larvae and terrestrial adults. There are approximately 14,500 described species, most of which can be divided into the suborders Integripalpia and Annulipalpia on the basis of the adult mouthparts. Integripalpian larvae construct a portable casing to protect themselves as they move around looking for food, while Annulipalpian larvae make themselves a fixed retreat in which they remain, waiting for food to come to them. The affinities of the small third suborder Spicipalpia are unclear, and molecular analysis suggests it may not be monophyletic. Also called sedge-flies or rail-flies, the adults are small moth-like insects with two pairs of hairy membranous wings. They are closely related to the Lepidoptera which have scales on their wings; the two orders together form the superorder Amphiesmenoptera.
The Rhine is one of the major European rivers, which has its sources in Switzerland and flows in a mostly northerly direction through Germany and the Netherlands, emptying into the North Sea. The river begins in the Swiss canton of Graubünden in the southeastern Swiss Alps, forms part of the Swiss-Liechtenstein, Swiss-Austrian, Swiss-German and then the Franco-German border, then flows through the German Rhineland and the Netherlands and eventually empties into the North Sea.
Mainz is the capital and largest city of Rhineland-Palatinate, Germany. The city is located on the Rhine river at its confluence with the Main river, opposite Wiesbaden on the border with Hesse. Mainz is an independent city with a population of 206,628 (2015) and forms part of the Frankfurt Rhine-Main Metropolitan Region.
It was last seen in 1938 and was described in 1977 by Austrian entomologist Hans Malicky on the basis of material he found in earlier collections.Very little is known about the species and no larvae were ever found. The River Rhine has been a subject to urban and industrial pollution for several decades during the 20th century. This had led to the decline and disappearance of many caddisfly species on several riversides of the Rhine.
Austria, officially the Republic of Austria, is a country in Central Europe comprising nine federated states. Its capital, largest city and one of nine states is Vienna. Austria has an area of 83,879 km2 (32,386 sq mi), a population of nearly nine million people and a nominal GDP of $477 billion. It is bordered by the Czech Republic and Germany to the north, Hungary and Slovakia to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the west. The terrain is landlocked and highly mountainous, lying within the Alps; only 32% of the country is below 500 m (1,640 ft), and its highest point is 3,798 m (12,461 ft). The majority of the population speaks local Bavarian dialects as their native language, and German in its standard form is the country's official language. Other regional languages are Hungarian, Burgenland Croatian, and Slovene.
A larva is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle.
The Chao Phraya is the major river in Thailand, with its low alluvial plain forming the centre of the country. It flows through Bangkok and then into the Gulf of Thailand.
Romanichthys is a genus of fish in the perch family. It contains the single species Romanichthys valsanicola, known as the sculpin-perch, asprete, or Romanian darter.
The Japanese house bat or Japanese pipistrelle is a species of vesper bat. An adult has a body length of 3.6–4.8 cm (1.4–1.9 in), a tail of 2.9–4.0 cm (1.1–1.6 in), and a wing length of 3.2–3.6 cm (1.3–1.4 in). It prefers to roost under the ceiling or inside the roof of old buildings. It is found across East Asia, from China and Taiwan into the Ussuri region, the Korean Peninsula, and Japan.
The Hydropsychidae are a family-level taxon consisting of net-spinning caddisflies. Hydropsychids are common among much of the world's streams, and a few species occupy the shorelines of freshwater lakes. Larvae of the hydropsychids construct nets at the open ends of their dwellings which are responsible for their "net-spinning caddisfly" common name.
The intermediate roundleaf bat is a species of bat in the family Hipposideridae. It is found in Bangladesh, Cambodia, China, India, Indonesia, Laos, Malaysia, Myanmar, Thailand, and Vietnam.
The Bayou darter is a rare species of darter endemic to western Mississippi in the United States, where it is found only in the Bayou Pierre River and its tributaries. Its typical habitat is fast-flowing creeks and streams, in riffles and in areas between riffles with firm gravel bottoms. It feeds on small insects and their larvae. Breeding probably takes place twice a year, in spring and late summer. The population of this fish is declining due to loss of suitable habitat. This is caused by siltation and pollution, particularly erosion caused by changes in land use. The International Union for Conservation of Nature has assessed its conservation status as being "endangered".
Bagarius rutilus is a species of sisorid catfish native to Laos, Vietnam and Yunnan in China where it is found in the Nam Sam, Nam Ma and Red River basins. This species grows to a length of 100 centimetres (39 in) SL.
Noturus hildebrandi, also known as the least madtom, is a species of catfish. Its native range stretches from the Obion River in Kentucky to the Homochitto River in Mississippi.
The teardrop darter is a species of darter endemic to the eastern United States. It is only found in Kentucky and Tennessee, where it occurs in the middle to upper reaches of the Green River drainage. It inhabits small rivers and creeks and rocky pools where it feeds on the larvae of blackflies and midges, immature stages of caddisflies and mayflies, and cladocerans and copepods. This species can reach a length of 6 cm (2.4 in), though most only reach about 4.2 cm (1.7 in).
Oxygymnocypris stewartii is a species of cyprinid fish endemic to Tibet and occurs in the Yarlung Tsangpo River and its tributaries at altitudes above 3,600 m (11,800 ft) in the Qinghai-Tibet Plateau. It is the only species in its genus.
Hydropsyche venularis is a species of netspinning caddisflies in the family Hydropsychidae. It is found in North America.
Hydropsyche rossi is a species of netspinning caddisfly in the family Hydropsychidae. It is found in North America.
Hydropsyche californica is a species of netspinning caddisfly in the family Hydropsychidae. It is found in North America.
Hydropsyche betteni is a species of netspinning caddisfly in the family Hydropsychidae. It is found in North America.
The UN Environment World Conservation Monitoring Centre (UNEP-WCMC) is an executive agency of UN Environment, based in Cambridge in the United Kingdom. UNEP-WCMC has been part of UN Environment since 2000, and has responsibility for biodiversity assessment and support to policy development and implementation. The World Conservation Monitoring Centre was previously an independent organisation jointly managed by IUCN, UN Environment and WWF established in 1988, and prior to that the Centre was a part of the IUCN Secretariat.
The IUCN Red List of Threatened Species, founded in 1965, has evolved to become the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red List are produced by countries or organizations, which assess the risk of extinction to species within a political management unit.
The International Union for Conservation of Nature is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable".
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