Geranium Argus
Eumedonia eumedon
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Eumedonia_eumedon
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
The Geranium Argus faces severe population declines across its European range due to intensive agricultural practices that eliminate its host plant, Geranium sylvaticum, and destroy the flower-rich meadows essential for adult feeding. Climate change compounds these pressures by shifting suitable habitat to higher elevations, fragmenting already isolated populations. Overgrazing and abandonment of traditional low-intensity farming practices have led to habitat degradation in many formerly occupied areas.
Habitat
This butterfly inhabits flower-rich mountain meadows, grasslands, and forest clearings at elevations between 400-2000 meters, particularly areas with abundant wild geranium (Geranium sylvaticum) which serves as the primary larval host plant. Adults require diverse nectar sources including thistles, knapweeds, and other composite flowers found in unimproved grassland habitats.
Other threatened species in Lycaenidae
Threatened in Åland Islands
Frequently asked questions
Why is Geranium Argus classified as Vulnerable?
Where does Geranium Argus live?
What are the main threats to Geranium Argus?
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