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The Dytiscidae – based on the Greek dytikos (δυτικός), "able to dive" – are the predaceous diving beetles, a family of water beetles. They occur in virtually any freshwater habitat around the world, but a few species live among leaf litter. The adults of most are between 1 and 2.5 cm (0.4–1.0 in) long, though much variation is seen between species. The European Dytiscus latissimus and Brazilian Megadytes ducalis are the largest, reaching up to 4.5 cm (1.8 in) and 4.75 cm (1.9 in) respectively. In contrast, the smallest is likely the Australian Limbodessus atypicali of subterranean waters, which only is about 0.9 mm (0.035 in) long. Most are dark brown, blackish, or dark olive in color with golden highlights in some subfamilies. The larvae are commonly known as water tigers due to their voracious appetite. They have short, but sharp mandibles and immediately upon biting, they deliver digestive enzymes into prey to suck their liquefied remains. The family includes more than 4,000 described species in numerous genera.
Hygrobia is a genus of aquatic beetles native to Europe, North Africa, China and Australia. It is the only genus in the family Hygrobiidae, also known as the Paelobiidae. These are known commonly as squeak beetles or screech-beetles.
Copelatus sociennus is a species of diving beetle. It is part of the subfamily Copelatinae in the family Dytiscidae. It was described by J. Balfour-Browne in 1952. The species can be found on Coloane and in Seac Pai Van. It feeds on Nelumbo nucifera.
Hydrovatus brevipes is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
Hydrovatus pustulatus is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
Hydrovatus confertus, is a species of predaceous diving beetle found in India, China, Thailand, Laos, Vietnam, Malaysia, Indonesia, Sri Lanka, Myanmar, Celebes, Cambodia, Hawaii, Bangladesh, Pakistan, and Nepal.
Hydrovatus castaneus, is a species of predaceous diving beetle found in India, Myanmar, Indonesia, Sri Lanka, Bangladesh, and China.
Hydrovatus acuminatus, is a species of predaceous diving beetle found in Oriental and African regions.
Laccophilus inefficiens, is a species of predaceous diving beetle found in India, Bangladesh, Bhutan, Myanmar, Nepal, Pakistan, Sri Lanka, China, Hong Kong, Japan, Taiwan, Vietnam, Laos, Thailand, Indonesia, Iran and Malaysia.
Hydaticus incertus, is a species of predaceous diving beetle found in India, Bhutan, Myanmar, Nepal, Sri Lanka, China, Malaysia, and Thailand.
Hydrovatus ischyrus, is a species of predaceous diving beetle found in Sri Lanka.
Hydrovatus obtusus, is a species of predaceous diving beetle found in Sri Lanka, Indonesia, Laos, Malaysia, Thailand, Vietnam and possibly in India, Myanmar and China.
Hydrovatus picipennis, is a species of predaceous diving beetle found in India, Sri Lanka, Indonesia, Philippines, China and Thailand.
Hydrovatus seminarius, is a species of predaceous diving beetle found in India, Bangladesh, Bhutan, Myanmar, Nepal, Pakistan, Sri Lanka, China, Indonesia, Japan, Laos, Malaysia, Taiwan, Thailand, Vietnam and Australian region.
Hydrovatus subrotundatus, is a species of predaceous diving beetle found in India, Bangladesh, Myanmar, Nepal, Sri Lanka, China, Indonesia, Laos, Philippines, Singapore, Thailand, Vietnam and Australian region.
Hydrovatus subtilis, is a species of predaceous diving beetle found in India, Andaman & Nicobar Islands, Sri Lanka, Indonesia, Japan, Laos, Malaysia, and Thailand.
Hydrovatus lyratus, is a species of predaceous diving beetle widespread in South Asia, South East Asia and Australian region.
Hydrovatus renardi, is a species of predaceous diving beetle widespread in India, Bangladesh, Bhutan, Myanmar, Nepal, Pakistan, and Sri Lanka.
Laccophilus uniformis, is a species of predaceous diving beetle found in India, Andaman & Nicobar Islands, Bangladesh, Myanmar, Sri Lanka, Cambodia, China, Indonesia, Laos, Thailand, and Vietnam.
Pseuduvarus vitticollis, is a species of predaceous diving beetle found in India, Nepal, Pakistan, Sri Lanka, China, Madagascar, Malaysia, Taiwan and African region.
References
- ↑ Ghosh SK, Nilsson AN (2012). "Catalogue of the diving beetles of India and adjacent countries (Coleoptera: Dytiscidae)" (PDF). Skörvnöpparn. Umeå. 3 (Supplement): 1–77.
- ↑ Jäch MA, Easton ER (1998). "Water beetles of Macao (Coleoptera)" (PDF). In Jäch MA, Ji L (eds.). Water beetles of China. Vol. 2. Wien: Zoologisch-Botanische Gesellschaft (Section of Entomology) and Wiener Coleopterologenverein. pp. 43–50. ISBN 978-3-901606-01-4.
- ↑ Biström O, Bergsten J (2016-11-16). "Two new species of the megadiverse lentic diving-beetle genus Hydrovatus (Coleoptera, Dytiscidae) described from NE Thailand". ZooKeys (632): 57–66. doi: 10.3897/zookeys.632.10483 . PMC 5126545 . PMID 27920604.
- ↑ "Hydrovatus rufoniger (Clark, 1863)". The Integrated Taxonomic Information System. Retrieved 2021-08-10– via Global Biodiversity Information Facility (GBIF).
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