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Common backswimmer (Notonecta glauca) The best-known genus of backswimmers is Notonecta – streamlined, deep-bodied bugs up to 1.6 cm (0.6 in) long, green, brown, or yellowish in colour. The common backswimmer, N. glauca, is widespread in Europe, including the United Kingdom where it is known as the greater water boatman. [3]
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]
Water boatmen active under the ice in March at Glenmore Reservoir, Calgary, Alberta Unlike their relatives the backswimmers ( Notonectidae ), who swim upside down, Corixidae swim right side up. It is easy to tell the two types of insects apart simply by looking at the swimming position.
Water boatman as a type of aquatic insect can mean: Corixa punctata, a species known as the lesser water boatman in the United Kingdom; Corixidae, a family known as water boatmen in the United States and Australia; Notonecta glauca, a species known as the greater water boatman in the United Kingdom (called the backswimmer in the United States)
Water boatman have highly modified front legs whereas backswimmers do not. [2] Backswimmers are distributed across a broad range throughout North America . However, the species Notonecta undulata has only been documented and studied in southern Manitoba , Saskatchewan , Alberta and the western United States.
The lesser waterboatman or lesser water boatman (Corixa punctata) is a water-dwelling insect of the order Hemiptera. [1] Adults normally range in size from 5 to 15 mm long, and are found in ponds, lakes and sometimes even swimming pools. The boatman feeds on algae and dead plant material. They are green with long hind legs which they use to ...
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Water boatman are stubby insects approximately 8 millimetres (0.31 in) in length. They have a distinctive marble pattern on their wing cases and long legs which assist their movement through the water. Their abdominal hairs are able to capture small air bubbles used to keep them afloat and these can often be seen upon close observation. [6]