| Coelhydrus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Dytiscidae |
| Tribe: | Hyphydrini |
| Genus: | Coelhydrus Sharp, 1882 |
| Species: | C. brevicollis |
| Binomial name | |
| Coelhydrus brevicollis Sharp, 1882 | |
Coelhydrus is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Coelhydrus brevicollis. It is found in South Africa. [1] [2] [3] [4]
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.
Hydroporus compunctus is a species of predaceous diving beetle in the family Dytiscidae. It is endemic to the Canary Islands.
Hydroporus pilosus is a species of predaceous diving beetle in the family Dytiscidae. It is endemic to the Canary Islands.
Hoperius is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Hoperius planatus. It is found in the United States east of the Rocky Mountains.
Melanodytes is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Melanodytes pustulatus, found in Europe and northern Asia.
Coptotomus is a genus of predaceous diving beetles in the family Dytiscidae, the only genus of the subfamily Coptotominae. There are about six described species in Coptotomus, found in North America and the Neotropics.
Regimbartina is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Regimbartina pruinosa.
Hydrodytes is a genus of predaceous diving beetles in the family Dytiscidae. There are at least three described species in Hydrodytes. It is found in North America and the Neotropics.
Crinodessus is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Crinodessus amyae, which has been found in Texas.
Huxelhydrus is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Huxelhydrus syntheticus, found in New Zealand.
Microdessus is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Microdessus atomarius, found in Brazil.
Sinodytes is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Sinodytes hubbardi, found in southern Asia.
Trogloguignotus is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Trogloguignotus concii, found in South America.
Andex is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Andex insignis.
Darwinhydrus is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Darwinhydrus solidus, found in South Africa.
Dimitshydrus is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Dimitshydrus typhlops. It is found in southern Asia.
Primospes is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Primospes suturalis, found in Africa.
Japanolaccophilus is a genus of predaceous diving beetles in the family Dytiscidae. There are at least two described species in Japanolaccophilus, one alive today and the other extinct.
Hyphydrini is a tribe of predaceous diving beetles in the family Dytiscidae. There are about 16 genera and more than 390 described species in Hyphydrini.
Liadroporus is an extinct genus of predaceous diving beetles in the family Dytiscidae. There is one described species in Liadroporus, L. elegans.
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