Barred Rivulet
VU

Barred Rivulet

Perizoma bifaciata

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Perizoma_bifaciata

Overview

Perizoma bifaciata, the barred rivulet, is a moth in the family of geometer moths (Geometridae). It was first described by Adrian Hardy Haworth in 1809.

The Barred Rivulet faces significant threats from habitat loss and degradation of its specialized wetland environments. Climate change and human development pressures on riparian and marshy areas where its host plants grow have contributed to population declines across much of its range.

Threat summary

Habitat

Inhabits wet meadows, marshes, fens, and riparian areas where its larval host plants in the Galium genus grow. Typically found in areas with consistent moisture and diverse herbaceous vegetation near streams, ditches, and other freshwater sources.

TERRESTRIAL· major

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Frequently asked questions

Why is Barred Rivulet classified as Vulnerable?
Barred Rivulet is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. The Barred Rivulet faces significant threats from habitat loss and degradation of its specialized wetland environments. Climate change and human development pressures on riparian and marshy areas where its host plants grow have contributed to population declines across much of its range.
Where does Barred Rivulet live?
Barred Rivulet occurs in Åland Islands, Andorra, Austria, Belarus, Bulgaria, and Croatia (plus 31 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Barred Rivulet?
The main threats to Barred Rivulet are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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