Zaitzevia parvula
(Horn, 1870)
riffle beetle
Zaitzevia parvula is a of riffle beetle in the Elmidae. It was described by Horn in 1870. The species is found in North America, with records from Alberta and British Columbia in Canada. Two are recognized: Z. p. parvula and Z. p. thermae.
Pronunciation
How to pronounce Zaitzevia parvula: //zaɪˈtsɛviə ˈpɑrvjʊlə//
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Habitat
Riffle beetles in the Elmidae are generally associated with aquatic environments, particularly fast-flowing, well-oxygenated streams and rivers. Larvae are aquatic and typically inhabit the undersides of stones and other submerged substrates in riffle zones.
Distribution
North America. Documented from Alberta and British Columbia, Canada.
Life Cycle
As with other Elmidae, the is presumed to include aquatic larval stages and terrestrial stages. Larvae are aquatic and typically require well-oxygenated water.
Ecological Role
Riffle beetles contribute to nutrient cycling in freshwater . Larvae graze on periphyton and detritus on submerged surfaces, helping to process organic matter and maintain water quality.
More Details
Subspecies
Two are recognized: Zaitzevia parvula parvula (Horn, 1870) and Zaitzevia parvula thermae (Hatch, 1938).