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Hydropsyche Betteni
''Hydropsyche betteni'', the Common Netspinner, is a species of netspinning caddisfly in the family Hydropsychidae 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 .... It is found in North America. References Trichoptera Articles created by Qbugbot Insects described in 1938 {{trichoptera-stub ...
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Herbert Holdsworth Ross
Herbert Holdsworth Ross (3 March 1908 – 2 November 1978) was a British-Canadian systematic entomologist. He was the author of an influential ''textbook of entomology'' first published in 1949. He worked on many insect groups but was widely recognized for his work on the Trichoptera. Ross was born to Jonathan and Jessie Holdsworth in Leeds. The family moved to Vancouver where Ross was educated. He graduated from the University of British Columbia in 1927 and then studied at the University of Illinois, Urbana-Champaign. receiving an MS in 1929 and a PhD in 1933. He worked as a systematic entomologist with the Illinois Natural History Survey The Illinois Natural History Survey (abbreviated as INHS), located on the campus of the University of Illinois at Urbana–Champaign in Champaign, Illinois, is an active research institution with over 200 staff members, and it maintains one of the ... and served as a professor of entomology at the University from 1947 to 1969. He married Je ...
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Hydropsychidae
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. Larvae The hydropsychid larval stage, like most Trichoptera larvae, is spent entirely in fresh water. They construct dwellings known as "retreats", which are fixed to the sides of rocks. These retreats are typically composed of collected plant and mineral fragments. At the large open end of their retreats, hydropsychids spin a net or sieve made of fine silk, similar to the silk produced by the larval form of the Lepidoptera (caterpillars), one of their close relatives. These nets catch algae, detritus, and smaller invertebrates. Different genera spin nets of different mesh sizes and shapes depending on what food type they are ...
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Trichoptera
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 (moths and butterflies) which have scales on their wings; the two orders together form the superorder Amphiesmenoptera. The aquatic larvae are found in a wide variety of habitats such as streams, river ...
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