Family Riffle Beetles (Elmidae)
Elmidae is a family in the order Coleoptera. Browse 87 named species recorded in this family, or open an individual profile for its available identification and natural-history information.
Species in Elmidae (87)
Dubiraphia parva
Dubiraphia parva
considered a "Species of Greatest Conservation Need" in LA & OK
Elmis aenea
Elmis aenea
A very small (2 mm) riffle beetle that is equipped with strong claws to enable it to grip in strong currents. It is a dark coloured species with very deeply ridged elytra. It is a water beetle of running water, but cannot swim and lives amongst stone
Comal Springs Riffle Beetle
Heterelmis comalensis
Identification: H. comalensis is the smallest of the Heterelmis species (n = 5) in the US, is the only species of Heterelmis with vestigial hind wings, and is flightless (Bosse et al., 1988). Type Locality: Texas, Comal County, Comal River, Landa Par
Macrelmis shoemakei
Macrelmis shoemakei
Type Locality: San Felipe Creek, Val Verde County, Texas
Neocylloepus boeseli
Neocylloepus boeseli
Identification: PARATYPE Type Locality: Devil's River about 20 mi S of Juno, Val Verde Co., TX - August 1967. Elevation about 1,200 ft. Holotype deposited in OMNH, Norman, OK. (Brown 1970) Texas considers this a "Species of Greatest Conservation Need
Phanocerus clavicornis
Phanocerus clavicornis
Identification: Readily distinguished by short antennae with compact 6-segm. club
Stenelmis sexlineata
Stenelmis sexlineata
Identification: Det. Brad Barnd, 2010 Type Locality: Lawrence, KS
Ampumixis dispar
Ampumixis dispar
Ancyronyx variegatus
Ancyronyx variegatus
Atractelmis wawona
Atractelmis wawona
Bryelmis idahoensis
Bryelmis idahoensis
Bryelmis rivularis
Bryelmis rivularis
Bryelmis siskiyou
Bryelmis siskiyou
Cleptelmis addenda
Cleptelmis addenda
Cylloepus abnormis
Cylloepus abnormis
Cylloepus parkeri
Cylloepus parkeri
Dubiraphia bivittata
Dubiraphia bivittata
Dubiraphia brevipennis
Dubiraphia brevipennis
Dubiraphia browni
Dubiraphia browni
Dubiraphia brunnescens
Dubiraphia brunnescens
Dubiraphia giulianii
Dubiraphia giulianii
Dubiraphia harleyi
Dubiraphia harleyi
Dubiraphia minima
Dubiraphia minima
Dubiraphia quadrinotata
Dubiraphia quadrinotata
Dubiraphia vittata
Dubiraphia vittata
Heterelmis glabra
Heterelmis glabra
Heterelmis obesa
Heterelmis obesa
Heterelmis obscura
Heterelmis obscura
Heterelmis simplex
Heterelmis simplex
Heterelmis vulnerata
Heterelmis vulnerata
Heterlimnius browni
Heterlimnius browni
Heterlimnius canus
Heterlimnius canus
Heterlimnius castanipennis
Heterlimnius castanipennis
Heterlimnius dietrichi
Heterlimnius dietrichi
Heterlimnius divergens
Heterlimnius divergens
Heterlimnius elegans
Heterlimnius elegans
Heterlimnius fastiditus
Heterlimnius fastiditus
Heterlimnius heteroclitus
Heterlimnius heteroclitus
Heterlimnius immunis
Heterlimnius immunis
Heterlimnius ovalis
Heterlimnius ovalis
Heterlimnius phaeus
Heterlimnius phaeus
Heterlimnius quadrimaculatus
Heterlimnius quadrimaculatus
Heterlimnius sandersoni
Heterlimnius sandersoni
Heterlimnius seriatus
Heterlimnius seriatus
Heterlimnius tardellus
Heterlimnius tardellus
Heterlimnius trivittatus
Heterlimnius trivittatus
Hexacylloepus ferrugineus
Hexacylloepus ferrugineus
Huleechius marroni
Huleechius marroni
Lara avara
Lara avara
Macrelmis moesta
Macrelmis moesta
Macrelmis shepardi
Macrelmis shepardi
Macrelmis texana
Macrelmis texana
Macronychus glabratus
Macronychus glabratus
Macronychus quadrituberculatus
Macronychus quadrituberculatus
Microcylloepus formicoideus
Microcylloepus formicoideus
Microcylloepus pusillus
Microcylloepus pusillus
Microcylloepus similis
Microcylloepus similis
Narpus angustus
Narpus angustus
Narpus concolor
Narpus concolor
Neoelmis caesa
Neoelmis caesa
Ordobrevia foveicollis
Ordobrevia foveicollis
Ordobrevia nubifera
Ordobrevia nubifera
Oulimnius latiusculus
Oulimnius latiusculus
Oulimnius nitidulus
Oulimnius nitidulus
Rhizelmis nigra
Rhizelmis nigra
Stenelmis beameri
Stenelmis beameri
Stenelmis bicarinata
Stenelmis bicarinata
Stenelmis calida
Stenelmis calida
Stenelmis canaliculata
Stenelmis canaliculata
Cheryl's Riffle Beetle
Stenelmis cheryl
Stenelmis concinna
Stenelmis concinna
Stenelmis crenata
Stenelmis crenata
Stenelmis decorata
Stenelmis decorata
Stenelmis exigua
Stenelmis exigua
Stenelmis grossa
Stenelmis grossa
Stenelmis lateralis
Stenelmis lateralis
Stenelmis lignicola
Stenelmis lignicola
Stenelmis mera
Stenelmis mera
Stenelmis mirabilis
Stenelmis mirabilis
Moapa Warm Springs Riffle Beetle
Stenelmis moapa
Stenelmis musgravei
Stenelmis musgravei
Stenelmis nipponica
Stenelmis nipponica
Stenelmis parva
Stenelmis parva
Stenelmis sandersoni
Stenelmis sandersoni
Stenelmis sinuata
Stenelmis sinuata
Stenelmis vulgaris
Stenelmis vulgaris
Zaitzevia parvula
Zaitzevia parvula