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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, which are longer than their antennae . [ 3 ]
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 ...
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]
Long-toed water beetles are named for their extended claws. Adults have dense hairs, which allow the beetles to breathe while underwater. The flight muscles of the females weaken as they age. [3] When the pupae complete the imago stage of their life cycle, they move towards running water, and may be attracted to lights. [3]
The classification of haliplids as a separate group of Adephaga is unquestioned, and most entomologists believe they developed from terrestrial beetles separately from other types of water beetles. For many decades, the family was in need of revision, the last general catalog being published by A. Zimmermann in 1920.
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.
All marine life is immersed in water, the matrix and womb of life itself. [7] Water can be broken down into its constituent hydrogen and oxygen by metabolic or abiotic processes, and later recombined to become water again. While the water cycle is itself a biogeochemical cycle, flow of water over and beneath the Earth is a key component of the ...