EN

Inocellia crassicornis

Unknown

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Inocellia crassicornis faces severe threats from habitat fragmentation and loss of old-growth coniferous forests across its limited Scandinavian range. Climate change poses an additional risk by altering the cool, humid microhabitats essential for this relict species' survival. The species' extremely restricted distribution and specialized ecological requirements make it particularly vulnerable to environmental changes and human disturbance.

Threat summary

Habitat

This relict snakefly inhabits old-growth coniferous forests, particularly those dominated by spruce and pine, where it requires cool, humid microclimates with abundant dead wood and bark crevices. The species is found in montane and boreal forest ecosystems across limited areas of Scandinavia.

TERRESTRIAL· major

Threatened in Austria

VU

Lepiota echinella

Unknown
EN

Lyophyllum deliberatum

Unknown
VU

Large Tree-chernes

Dendrochernes cyrneus

Unknown
EN

Pipizella nigriana

Unknown

Frequently asked questions

Why is Inocellia crassicornis classified as Endangered?
Inocellia crassicornis 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. Inocellia crassicornis faces severe threats from habitat fragmentation and loss of old-growth coniferous forests across its limited Scandinavian range. Climate change poses an additional risk by altering the cool, humid microhabitats essential for this relict species' survival. The species' extremely restricted distribution and specialized ecological requirements make it particularly vulnerable to environmental changes and human disturbance.
Where does Inocellia crassicornis live?
Inocellia crassicornis occurs in Austria, Belarus, Belgium, Czechia, Finland, and France (plus 13 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 Inocellia crassicornis?
The main threats to Inocellia crassicornis 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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