Sharp-1882
Guides
Heterelmis obesa
riffle beetle
Heterelmis obesa is a species of riffle beetle in the family Elmidae, first described by Sharp in 1882. It is one of the most widely distributed species in the genus Heterelmis, occurring across Central America, North America, and South America. The species is recognized as having two subspecies: Heterelmis obesa obesa and Heterelmis obesa plana Hinton, 1936. Like other elmid beetles, it is adapted to aquatic environments with flowing water.
Hydroporus despectus
Belittled Water Beetle
Hydroporus despectus is a predaceous diving beetle in the family Dytiscidae, described by Sharp in 1882. It occurs in North America with records from Canada (Alberta, British Columbia) and presumably the United States. As a member of the genus Hydroporus, it inhabits aquatic environments and functions as a predator. The common name "Belittled Water Beetle" has been assigned to this species.
Hydrovatus brevipes
Hydrovatus brevipes is a predaceous diving beetle (family Dytiscidae) described by Sharp in 1882. It belongs to the tribe Hydrovatini within the subfamily Hydroporinae. The species is documented from North America, though specific details regarding its ecology, habitat preferences, and life history remain poorly documented in the available literature.
Laccophilus pictus insignis
Laccophilus pictus insignis is a subspecies of diving beetle in the family Dytiscidae, described by Sharp in 1882. It belongs to the genus Laccophilus, a group of small predatory diving beetles commonly known as water beetles. The subspecies is distributed across Middle America and North America. As with other members of its genus, it is likely an aquatic predator inhabiting freshwater environments, though specific ecological details for this subspecies remain poorly documented in available sources.
Rhantus sericans
Rhantus sericans is a predaceous diving beetle in the family Dytiscidae, first described by Sharp in 1882. The species is distributed across North America and has been recorded from the Holarctic region, including the Canadian province of Alberta. As a member of the genus Rhantus, it belongs to a group of diving beetles adapted to aquatic environments. The species is represented by 88 observations on iNaturalist, indicating it is documented but not exceptionally common in citizen science records.