Platycheirus immarginatus
EN

Platycheirus immarginatus

UnknownNTEUNTEU

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

Overview

Platycheirus immarginatus, the Comb-legged Sedgesitter, is a common species of hoverfly. It is found in parts of northern Europe and northern North America.

Platycheirus immarginatus faces severe population declines primarily due to habitat loss and degradation of its specialized wetland environments. Climate change and agricultural intensification are reducing the availability of suitable breeding and foraging sites, while pollution from agricultural runoff further degrades remaining habitat quality.

Threat summary

Habitat

Palearctic: Britain, Ireland, Sweden, Denmark, the Netherlands and Belgium. Nearctic: Alaska south to California.

Other threatened species in Syrphidae

Chalcosyrphus valgusVU

Chalcosyrphus valgus

Unknown
Cheilosia nebulosaVU

Cheilosia nebulosa

Unknown
CR

Merodon longispina

Unknown
Chrysotoxum verralliCR

Chrysotoxum verralli

Unknown

Threatened in Åland Islands

Scarce BlackneckCR

Scarce Blackneck

Lygephila craccae

Unknown
EN

Dolichopus notatus

Unknown
Haplodrassus cognatusCR

Haplodrassus cognatus

Unknown
Yellow-breasted BuntingCR

Yellow-breasted Bunting

Emberiza aureola

Declining

Frequently asked questions

Why is Platycheirus immarginatus classified as Endangered?
Platycheirus immarginatus is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Platycheirus immarginatus faces severe population declines primarily due to habitat loss and degradation of its specialized wetland environments. Climate change and agricultural intensification are reducing the availability of suitable breeding and foraging sites, while pollution from agricultural runoff further degrades remaining habitat quality.
Where does Platycheirus immarginatus live?
Platycheirus immarginatus occurs in Åland Islands, Canada, Denmark, Estonia, Finland, and France (plus 10 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 Platycheirus immarginatus?
The main threats to Platycheirus immarginatus 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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