Riffle-beetles
Guides
Byrrhoidea
Pill, Water and Toe-winged Beetles
Byrrhoidea is a superfamily of beetles within Elateriformia, comprising families that are primarily aquatic or semi-aquatic. It includes the families Byrrhidae (pill beetles), Elmidae (riffle beetles), Dryopidae (long-toed water beetles), Limnichidae (minute marsh-loving beetles), Psephenidae (water penny beetles), Heteroceridae (variegated mud-loving beetles), Chelonariidae (turtle beetles), Eulichadidae (forest stream beetles), Callirhipidae (cedar beetles), Cneoglossidae, and Ptilodactylidae. The superfamily was historically split into Dryopoidea, which is no longer recognized as separate. The current circumscription of Byrrhoidea may not be monophyletic, with Buprestoidea nested within it in some phylogenetic analyses.
Dubiraphia
riffle beetles
Dubiraphia is a genus of riffle beetles in the family Elmidae, established by Sanderson in 1954. The genus contains approximately 11 described species distributed in North America. These beetles are aquatic or semi-aquatic, inhabiting flowing water environments. Species within Dubiraphia are distinguished by morphological features of the elytra and male genitalia.
Huleechius
Huleechius is a genus of riffle beetles in the family Elmidae, established by Brown in 1981. The genus contains at least two described species: Huleechius marroni and Huleechius spinipes. Like other elmids, these beetles are associated with freshwater habitats, particularly flowing water environments.
Lara
Lara is a genus of beetles in the family Elmidae, commonly known as riffle beetles. The genus was established by John Lawrence LeConte in 1852. Members of this genus are aquatic beetles associated with flowing water habitats. The genus is classified within the subfamily Larainae, which contains other genera of similar aquatic beetles.
Lutrochidae
Travertine Beetles
Lutrochidae is a small family of aquatic beetles commonly known as travertine beetles. The family has been reported from hygropetric habitats for the first time in Venezuela, expanding beyond their previously known association with travertine-depositing springs and streams in North America. Species occur in the Americas from the United States through the Neotropics, with recent revisions documenting new species from Venezuela, the Guianas, and the Lesser Antilles.
Macronychini
riffle beetles
Macronychini is a tribe of riffle beetles within the family Elmidae, first described by Gistel in 1848. The tribe comprises more than 20 genera and over 80 described species. Members of this tribe are aquatic beetles associated with running water habitats. The tribe is taxonomically well-established but individual species continue to be described, particularly from underexplored regions such as China.
Narpus
riffle beetles
Narpus is a genus of riffle beetles in the family Elmidae, established by Casey in 1893. The genus contains three described species: Narpus angustus, Narpus arizonicus, and Narpus concolor. These beetles are restricted to western North America and are strongly associated with clean, fast-flowing stream habitats. As members of the Elmidae family, they are adapted to life in running water environments.
Neocylloepus
Neocylloepus is a genus of riffle beetles in the family Elmidae, established by Brown in 1970. The genus contains eight described species, all distributed in Colombia. These beetles are associated with freshwater habitats, specifically riffle environments in streams and rivers.