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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.
Wadi Fara is a seasonal watercourse, or wadi, in Ras Al Khaimah, United Arab Emirates. It runs from the confluence of the Wadi Asimah and Wadi Sidr, to the village of Ghayl.
Copelatus taprobanicus is a species of diving beetle endemic to Sri Lanka. It is part of the genus Copelatus in the subfamily Copelatinae of the family Dytiscidae. It was described by Wewalka & Vazirani in 1985.
Copelatinae is a subfamily of diving beetles, in the family Dytiscidae. The subfamily contains seven genera: Agaporomorphus, Aglymbus, Copelatus, Exocelina, Lacconectus, Liopterus, and Madaglymbus. Of these, the largest is Copelatus, which has about 470 described species found worldwide, but most diverse in tropical South America, Africa and South-East Asia.
Bidessini is a tribe of predaceous diving beetles in the family Dytiscidae. There are at least 40 genera and at least 630 described species in Bidessini.
Hydroglyphus flammulatus, is a species of predaceous diving beetle found in India, Sri Lanka, Pakistan, Thailand, Cambodia, China, Taiwan, Korea, Myanmar, Bangladesh, Indonesia, Vietnam, and Nepal.
Cybister tripunctatus, is a species of predaceous diving beetle found in India, Andaman & Nicobar Islands, Sri Lanka, Afghanistan, Bangladesh, Myanmar, Nepal, Pakistan, Bhutan, China, Cyprus, Iran, Iraq, Japan, Kyrgyzstan, Mongolia, Russia, Syria, Tajikistan, Turkmenistan, Italy, Turkey, Uzbekistan and Europe.
Hyphydrus intermixtus, is a species of predaceous diving beetle found in India and Sri Lanka.
Laccophilus sharpi, is a species of predaceous diving beetle found in Asia, Africa and Australian region.
Clypeodytes bufo, is a species of predaceous diving beetle found in India, Bangladesh, Myanmar, Sri Lanka, China, and Vietnam.
Cybister prolixus, is a species of predaceous diving beetle found in Sri Lanka.
Cybister sugillatus, is a species of predaceous diving beetle found in India, Sri Lanka, Afghanistan, Bhutan, Myanmar, Nepal, Pakistan, China, Indonesia, Japan, and Philippines.
Hydaticus fractifer, is a species of predaceous diving beetle found in India, Andaman & Nicobar Islands and Sri Lanka.
Hydaticus incertus, is a species of predaceous diving beetle found in India, Bhutan, Myanmar, Nepal, Sri Lanka, China, Malaysia, and Thailand.
Hydroglyphus inconstans, is a species of predaceous diving beetle found in India, Bangladesh, Bhutan, Myanmar, Nepal, Sri Lanka, China, Indonesia, Japan, Malaysia, and Taiwan. It is an alkaliphilous beetle species.
Hyphoporus interpulsus, is a species of predaceous diving beetle found in Sri Lanka.
Hydrovatus sinister, is a species of predaceous diving beetle found in India, Myanmar, Sri Lanka, Sumatra, Thailand, Laos, Singapore and Malaysia.
Lacconectus spangleri, is a species of predaceous diving beetle widespread in India, Bangladesh, Bhutan, Myanmar, Nepal, Pakistan, and Sri Lanka.
Laccophilus ellipticus, is a species of predaceous diving beetle widespread in India, Myanmar, Sri Lanka, China, Cambodia, Indonesia, Thailand, and Vietnam.
Uvarus livens, is a species of predaceous diving beetle found in India, Andaman & Nicobar Islands, Bangladesh, Sri Lanka, and Malaysia.
References
- ↑ "Catalogue of the diving beetles of India and adjacent countries (Coleoptera: Dytiscidae)" (PDF). Skörvnöpparn, Umeå Supplement 3, 2012: 1-77. Retrieved 2021-08-07.
- ↑ "Hydroglyphus flaviculus Motschulsky, 1861". www.gbif.org. Retrieved 2021-08-10.
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