| Heterelmis | |
|---|---|
 | |
| Heterelmis comalensis | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Elmidae |
| Subfamily: | Elminae |
| Tribe: | Elmini |
| Genus: | Heterelmis Sharp, 1882 |
Heterelmis is a genus of beetles in the riffle beetle family Elmidae. [1]
Species include:
Lara is a genus of Nearctic beetles in the family Elmidae.
Heterelmis comalensis is a rare species of beetle known by the common name Comal Springs riffle beetle. It is endemic to Texas in the United States, where it occurs in only two springs. It is a federally listed endangered species of the United States.
Elmidae, commonly known as riffle beetles, is a family of beetles in the superfamily Byrrhoidea described by John Curtis in 1830. Both adults and larvae are usually aquatic, living under rocks in fast-flowing shallow areas of streams, such as riffles, feeding on algae and biofilms. There are more than 150 genera and 1,500 described species in Elmidae. The oldest record of the group is Cretohypsilara from the Cenomanian aged Burmese amber.
Ancyronyx, commonly known as spider water beetles or spider riffle beetles, is a genus of aquatic riffle beetles from North America, South Asia, China, and Southeast Asia. They are small beetles with extremely long legs ending in strong claws. Both the adults and the larvae are found underwater in the shallow riffles of streams and rivers, clinging to rocks or submerged wood. They feed on algae and decaying wood tissue. The genus contains twenty-one species, eleven of which are endemic to the Philippines.
Heterelmis stephani was a rare species of aquatic beetle known by the common name Stephan's riffle beetle. It was endemic to Arizona in the United States, where it occurred in the Santa Rita Mountains before being declared presumed extinct. It was brown in color with small black dots on its wings.
Elminae is a subfamily of riffle beetles in the family Elmidae. There are at least 120 genera and more than 1,300 described species in Elminae.
Elmini is a tribe of riffle beetles in the family Elmidae. There are more than 90 genera and 1,200 described species in North America.
Heterelmis obscura is a species of riffle beetle in the family Elmidae. It is found in Central America and South America.
Bryelmis is a genus of riffle beetles in the family Elmidae. There are at least three described species in Bryelmis.
Oulimnius is a genus of riffle beetles in the family Elmidae. There are about 15 described species in Oulimnius.
Hexacylloepus is a genus of riffle beetles in the family Elmidae. There are about 19 described species in Hexacylloepus.
Ordobrevia is a genus of riffle beetles in the family Elmidae. There are about 11 described species in Ordobrevia.
Zaitzevia is a genus of riffle beetles in the family Elmidae. There are about 19 described species in Zaitzevia. The genus is named after the Russian entomologist Filipp Zaitsev.
Neocylloepus is a genus of riffle beetles in the family Elmidae. There are about eight described species in Neocylloepus.
Heterelmis glabra is a species of riffle beetle in the family Elmidae. It is found in Central America and North America.
Atractelmis is a genus of riffle beetles in the family Elmidae. There is one described species in Atractelmis, A. wawona.
Promoresia is a genus of riffle beetles in the family Elmidae. There are at least two described species in Promoresia.
Cleptelmis is a genus of riffle beetles in the family Elmidae. There are at least two described species in Cleptelmis.
Heterelmis obesa is a species of riffle beetle in the family Elmidae. It is found in Central America, North America, and South America.
Huleechius is a genus of riffle beetles in the family Elmidae. There are at least two described species in Huleechius.
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