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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 ]
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.
Goodnature was founded by friends Robbie van Dam and Craig Bond who met while studying industrial design at Victoria University.Van Dam had a job at the Department of Conservation (DOC) in the Biodiversity Unit building gadgets for pest control when he noticed the methods for killing pest species such as rats, stoats and possums were either inefficient or inhumane.
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Notonecta amplifica Kiritshenko, 1931 (Europe, Asia); Notonecta arabiensis Hungerford, 1926 (); Notonecta bicirca Hungerford, 1926 (South America); Notonecta bicircoidea Hungerford, 1928 (South America)