Paraleuctra

Hanson, 1941

rolled-winged stoneflies

Paraleuctra is a of rolled-winged in the , comprising 27 valid distributed across the Nearctic and Palaearctic regions. The genus was established by Hanson in 1941 and is characterized by with weak flying ability that inhabit vegetation along stream banks. are aquatic and restricted to cold, oxygen-rich water environments. Recent taxonomic revisions using molecular and morphological data have resolved synonymies within the genus, particularly among Palaearctic species.

Paraleuctra vershina by no rights reserved, uploaded by Mike Palmer. Used under a CC0 license.Paraleuctra vershina by no rights reserved, uploaded by Mike Palmer. Used under a CC0 license.Paraleuctra vershina by no rights reserved, uploaded by Mike Palmer. Used under a CC0 license.

Pronunciation

How to pronounce Paraleuctra: /ˌpærəˈljuːktrə/

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Images

Habitat

inhabit cold streams, springs, and rock fissure seepage with high dissolved oxygen. occur on herbs, grasses, and shrubs along stream banks.

Distribution

Nearctic: Alberta, Alabama, Alaska, British Columbia. Palaearctic: Russia, China (Henan, Shaanxi, Anhui, Hubei, Sichuan, Yunnan, Zhejiang, Fujian), Siberia.

Diet

feed on mosquito , fragments, and . consume algae, moss, lichens, and leaves.

Life Cycle

Females lay in water after mating. develop aquatically in cold, oxygen-rich waters. emerge and live on bank vegetation for days to weeks.

Behavior

exhibit weak flying ability and positive . Adults aggregate in groups conducive to mating. have narrow ranges.

Ecological Role

function as both (consuming mosquito ) and / (processing fragments and ). Common inhabitants of stream .

Sources and further reading