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Notonecta glauca, also known as the greater water-boatman or common backswimmer, is a species of aquatic insect in the family Notonectidae. This species is found in large parts of Europe, North Africa, and east through Asia to Siberia and China. [1] In much of its range it is the most common backswimmer species. [2]
Notonecta undulata, also known by the common name grousewinged backswimmer, are from the family Notonectidae and the insect suborder Heteroptera. They are a type of hemipteran or true bug . These aquatic insects typically spend their time at the water's surface, using their abdomen and legs to cling to the underside of the surface tension .
Notonectidae is a cosmopolitan family of aquatic insects in the order Hemiptera, commonly called backswimmers because they swim "upside down" (inverted). They are all predators and typically range from 0.5 to 1.5 cm (0.2–0.6 in) in length. [ 1 ]
Notonecta amplifica Kiritshenko, 1931 (Europe, Asia); Notonecta arabiensis Hungerford, 1926 (); Notonecta bicirca Hungerford, 1926 (South America); Notonecta bicircoidea Hungerford, 1928 (South America)
Corixidae is a family of aquatic insects in the order Hemiptera.They are found worldwide in virtually any freshwater habitat and a few species live in saline water. [1] There are about 500 known species worldwide, in 55 genera, including the genus Sigara.
The nymphs of the hemimetabolous orders mayflies, dragonflies and stoneflies, and the larvae of the holometabolous orders megalopterans and caddisflies, possess tracheal gills, which are outgrowths of the body wall containing a dense network of tracheae covered by a thin cuticle through which oxygen in the water can diffuse.
Pleidae, the pygmy backswimmers, is a family of aquatic insects in the order Hemiptera (infraorder Nepomorpha, or "true water bugs"). There are 37 species in three genera , distributed across most of the world, except the polar regions and remote oceanic islands.
Larval hydrophilids hunt a wide variety of prey such as copepods, mosquito larvae, snails, and conspecifics. [27] The larvae have a unique way of hunting by lifting their prey out of the water to consume it. The reason for this is not well known, but there is a suggestion that lifting the prey makes it more difficult for the prey to escape. [27]