Hydroporini
Guides
Clarkhydrus spectabilis
Clarkhydrus spectabilis is a diving beetle species in the family Dytiscidae, described by Zimmerman in 1982. The genus Clarkhydrus belongs to the tribe Hydroporini within the subfamily Hydroporinae. As a member of the Dytiscidae family, this species is adapted to aquatic habitats. The specific epithet 'spectabilis' suggests notable or showy characteristics, though detailed biological information remains limited in available sources.
Oreodytes humboldtensis
Oreodytes humboldtensis is a species of predaceous diving beetle in the family Dytiscidae, described by Zimmerman in 1985. As a member of the genus Oreodytes, it belongs to a group of small diving beetles primarily associated with running water habitats. The species epithet suggests a connection to the Humboldt region, likely referring to Humboldt County or the broader Humboldt Bay area of coastal northern California. Like other Oreodytes species, it is presumed to be an aquatic predator in freshwater systems.
Siettitiina
Siettitiina is a subtribe of diving beetles (family Dytiscidae) established by Smrz in 1982. It belongs to the subfamily Hydroporinae and tribe Hydroporini. The group includes the genus Iberoporus, which contains the first known stygobiont beetle species from Portugal, Iberoporus pluto, discovered in 2019. Members of this subtribe are associated with subterranean and groundwater habitats.