| Hydropsyche tobiasi | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Trichoptera |
| Family: | Hydropsychidae |
| Genus: | Hydropsyche |
| Species: | †H. tobiasi |
| Binomial name | |
| †Hydropsyche tobiasi Malicky, 1977 | |
Hydropsyche tobiasi, or Tobias' caddisfly, is an extinct species of caddisfly which lived on the River Rhine between Mainz and Cologne. [2]
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. [2] Very little is known about the species and no larvae were ever found. [2] 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. [2]
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 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.
Hydropsyche venularis is a species of netspinning caddisflies in the family Hydropsychidae. It is found in North America.
Hydropsyche is a genus of netspinning caddisflies in the family Hydropsychidae. There are at least 260 described species in Hydropsyche.
Limnephilus rhombicus is a species of northern caddisfly in the family Limnephilidae. It is found in Europe and northern Asia.
Micrasema is a genus of humpless casemaker caddisflies in the family Brachycentridae. There are more than 70 described species in Micrasema.
Hydropsyche rossi is a species of netspinning caddisfly in the family Hydropsychidae. It is found in North America.
Himalopsyche is a genus of free-living caddisflies in the family Rhyacophilidae. There are more than 40 described species in Himalopsyche.
Lype is a genus of net tube caddisflies in the family Psychomyiidae. There are more than 20 described species in Lype.
Psilotreta is a genus of mortarjoint casemakers in the family Odontoceridae. There are more than 30 described species in Psilotreta.
Anisocentropus is a genus of caddisflies in the family Calamoceratidae. There are more than 60 described species in Anisocentropus.
Hydropsyche californica is a species of netspinning caddisfly in the family Hydropsychidae. It is found in North America.
Hydropsyche betteni, the Common Netspinner, is a species of netspinning caddisfly in the family Hydropsychidae. It is found in North America.
Potamyia is a genus of netspinning caddisflies in the family Hydropsychidae. There are more than 20 described species in Potamyia.
Agraylea is a genus of microcaddisflies in the family Hydroptilidae. There are more than 20 described species in Agraylea.
Anisocentropus krampus is a species of caddisfly in the family Calamoceratidae. It was described in 1994 by Austrian entomologist Hans Malicky and found in New Britain.
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