| Hoperius | |
|---|---|
 | |
| Hoperius planatus, Maryland | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Dytiscidae |
| Tribe: | Colymbetini |
| Genus: | Hoperius Fall, 1927 |
| Species: | H. planatus |
| Binomial name | |
| Hoperius planatus Fall, 1927 | |
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. [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.
Acilius is a holarctic genus of diving beetles in the family Dytiscidae and typically has a life cycle that is univoltine.
Hydroporus erythrocephalus is a species of predaceous diving beetle in the family Dytiscidae. It is found in the Palearctic, including Europe and the Near East.
Hydroporus pubescens is a species of predaceous diving beetle in the family Dytiscidae. It is found in the Palearctic.
Ilybius chalconatus is a species of predaceous diving beetle in the family Dytiscidae. It is found in the Palearctic.
Austrodytes is a genus of beetles in the family Dytiscidae found only in northern Australia. It was first described in 1978 by Chris Watts. The genus contains these two species:
Onychohydrus is a genus of beetles in the family Dytiscidae. The genus is found in Australia, Tasmania, and New Zealand's North Island. The genus consists of these two species:
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.
Sinodytes is a genus of predaceous diving beetles in the family Dytiscidae. This genus has a single species, Sinodytes hubbardi, found in southern Asia.
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.
Copelatini is a tribe of diving beetles in the family Dytiscidae. It is the sole tribe in the subfamily Copelatinae. The largest genus within the tribe is Copelatus, which has about 470 described species found worldwide, but most diverse in tropical South America, Africa and South-East Asia.
Hydroporinae is a subfamily of predaceous diving beetles in the family Dytiscidae. There are at least 2,200 described species in Hydroporinae.
Colymbetini is a tribe of predaceous diving beetles in the family Dytiscidae. There are about 11 genera and more than 160 described species in Colymbetini.
Colymbetinae is a subfamily of predaceous diving beetles in the family Dytiscidae. There are about 11 genera and at least 130 described species in Colymbetinae.
Agabinus is a genus of predaceous diving beetles in the family Dytiscidae. There are at least two described species in Agabinus. They are found in North America.
Lacconectus spangleri, is a species of predaceous diving beetle widespread in India, Bangladesh, Bhutan, Myanmar, Nepal, Pakistan, and Sri Lanka.
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