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Hydrophilus triangularis, known generally as the giant black water beetle or giant water scavenger, is a species of water scavenger beetle in the family Hydrophilidae. [1] [2] [3] It is the most common and widespread species of Hydrophilus in North America, being found across the contiguous United States, southern Canada, and Mexico.
A water beetle is a generalized name for any beetle that is adapted to living in water at any point in its life cycle. Most water beetles can only live in fresh water, with a few marine species that live in the intertidal zone or littoral zone. There are approximately 2000 species of true water beetles native to lands throughout the world. [1 ...
Hydrophilidae, also known colloquially as water scavenger beetles, is a family of beetles. [1] [2] Aquatic hydrophilids are notable for their long maxillary palps, ...
Hydrophiloidea, known as water scavenger beetles, is a superfamily of beetles. Until recently it included only a single family, the Hydrophilidae (water scavenger beetles), but several of the subfamilies have been removed and raised to family rank. [1] Hydrophiliidae remains by far the largest member of the group, with nearly 3,000 described ...
Bifurcitus ducalis, formerly Megadytes ducalis, is a species of water beetle in the family Dytiscidae.It is the largest species in the family. [2] Until recently, the species was only known from a single specimen that was collected in the 19th century from Brazil, [3] but more specimens, also collected in the 19th century from Brazil, were discovered in 2019. [4]
Diving beetles are the most diverse beetles in the aquatic environment and can be found in almost every kind of freshwater habitat, from small rock pools to big lakes. Some dytiscid species are also found in brackish water. [5] Diving beetles live in water bodies in various landscapes, including agricultural and urban landscapes.
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]
This beetle is among the largest aquatic insects. Adults can reach up to 5–5.15 cm (1.97–2.03 in) in length and 2.05 cm (0.81 in) in width. [3] [2] The larvae are up to 7 cm (2.8 in) long. The body of adults is black with a greenish or olive sheen. It has protruding eyes and reddish-black antennae. [2]