Bog Hoverfly
EN

Bog Hoverfly

Eristalis cryptarum

UnknownLCEULCEU

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

Overview

Eristalis cryptarum is a holarctic species of hoverfly. Known as the bog hoverfly or bog-dwelling drone fly, it is a bog specialist but may occur in other wetlands. Its larvae are assumed to live in peat that is saturated with water, such as that found in these boggy areas. The female has been observed depositing eggs on and close to very fresh cow dung along oligotrophic seepages in moorland.

The Bog Hoverfly faces severe population declines primarily due to the widespread destruction and degradation of its specialized bog and wetland habitats. Climate change and human development pressures continue to fragment and eliminate the pristine peat bog ecosystems this species depends on for breeding and survival.

Threat summary

Other threatened species in Syrphidae

CR

Merodon longispina

Unknown
saksische fopwespCR

saksische fopwesp

Chrysotoxum verralli

Unknown
piemelkrieltjeEN

piemelkrieltje

Paragus tibialis

Unknown
ingesnoerde waterzweefvliegEN

ingesnoerde waterzweefvlieg

Anasimyia contracta

Unknown

Threatened in Austria

Calidris ferrugineaVU

Calidris ferruginea

Declining
Anthophore estivaleCR

Anthophore estivale

Anthophora aestivalis

Unknown
Adonis BlueVU

Adonis Blue

Lysandra bellargus

Unknown
agnhodeedderkoppCR

agnhodeedderkopp

Walckenaeria alticeps

Unknown

Frequently asked questions

Why is Bog Hoverfly classified as Endangered?
Bog Hoverfly 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. The Bog Hoverfly faces severe population declines primarily due to the widespread destruction and degradation of its specialized bog and wetland habitats. Climate change and human development pressures continue to fragment and eliminate the pristine peat bog ecosystems this species depends on for breeding and survival.
Where does Bog Hoverfly live?
Bog Hoverfly occurs in Austria, Belgium, Canada, Denmark, Estonia, and Finland (plus 16 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 Bog Hoverfly?
The main threats to Bog Hoverfly 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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