Category

Elmidae

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thumb|upright|Hydora picea illustration by Des Helmore 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.

Grouvellinus leonardodicaprioi

species of riffle beetle

Stenelmis is the largest and most widespread genus of beetles in the family Elmidae.

Cylloepus is a genus of riffle beetles in the family Elmidae. There are about six described species in Cylloepus.

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 (ru).

Promoresia tardella

species of insect

Macronychus is a genus of riffle beetles in the family Elmidae. There are about 11 described species in Macronychus.

Optioservus was a genus of riffle beetles in the family Elmidae; as of 2021 it is a junior synonym of Heterlimnius. There were about 13 described species in Optioservus.

Macrelmis shoemakei

species of insect

Phanocerus clavicornis

species of insect

Hexacylloepus ferrugineus

species of insect

Oulimnius latiusculus

species of insect

Optioservus quadrimaculatus

species of insect

Dubiraphia quadrinotata

species of insect

genus of insects

Cleptelmis is a genus of riffle beetles in the family Elmidae. There are at least two described species in Cleptelmis.

Macronychus glabratus

species of insect

Ordobrevia nubifera

species of insect

thumb | 220x124px | right | Macrelmis Macrelmis is a genus of riffle beetles in the family Elmidae. There are at least three described species in Macrelmis.

Neoelmis is a genus of riffle beetles in the family Elmidae. There are more than 50 described species in Neoelmis.

Dubiraphia is a genus of riffle beetles in the family Elmidae. There are about 11 described species in Dubiraphia.

Heterelmis vulnerata

species of insect

Limnius is a genus of beetles belonging to the family Elmidae.

Oulimnius is a genus of riffle beetles in the family Elmidae. There are about 15 described species in Oulimnius.

Phanocerus is a genus of riffle beetles in the family Elmidae. It is primarily Neotropical, with one species (Phanocerus clavicornis) reaching the Nearctic realm.

Optioservus ovalis

species of insect

Microcylloepus pusillus

species of insect

Promoresia elegans

species of insect

Heterlimnius corpulentus

species of insect

Grouvellinus is a genus of beetle in the family Elmidae. , over forty species are recognized, including:

Limnius volckmari

species of insect

Narpus concolor

species of insect

species of insect

Stenelmis crenata

species of riffle beetle

Cylloepus parkeri

species of insect

species of insect

Dubiraphia harleyi

species of insect

Stenelmis canaliculata

species of insect

Narpus is a genus of riffle beetles in the family Elmidae. They are found in western North America. They are associated with clean, fast flowing streams.

Narpus angustus

species of insect

Stenelmis decorata

species of insect

Heterelmis is a genus of beetles in the riffle beetle family Elmidae.

Optioservus seriatus

species of riffle beetle

Stenelmis parva

species of insect

Dubiraphia brunnescens

species of insect

Dubiraphia minima

species of insect

Optioservus canus

species of insect

Optioservus castanipennis

species of insect

Optioservus immunis

species of insect

Heterelmis obscura

species of insect

Optioservus divergens

species of insect

Stenelmis mirabilis

species of insect

Hexacylloepus is a genus of riffle beetles in the family Elmidae. There are about 19 described species in Hexacylloepus.

Heterlimnius koebelei

species of insect

Optioservus trivittatus

species of insect

Stenelmis grossa

species of insect

Dubiraphia brevipennis

species of insect

Stenelmis lignicola

species of insect

Oulimnius nitidulus

species of insect

Dubiraphia bivittata

species of insect