| Family | Lycaenidae |
|---|---|
| Subfamily | Polyommatinae |
| Genus | Agriades |
| Species | glandon |
| Authority | (Prunner, 1798) |
| English Name | Glandon Blue |
| European Red List 2010 | Least Concern (LC) |
|---|---|
| EU 27 Red List 2010 | Least Concern (LC) |
| European Red List 2025 | Least Concern (LC) |
| EU 27 Red List 2025 | Least Concern (LC) |
| Habitats Directive | |
| Bern Convention | |
| CITES |
In Central Europe, the Glandon Blue is found up to the snow-line on grassy vegetation, where the foodplants grow on open patches. On calcareous soils, Androsace chamaejasme is used, and on non-calcareous soils, the caterpillars feed on A. obtusifolia and Vitaliana primuliflora. The caterpillars feed on the leaves and sometimes the flowers of the foodplants. The Glandon Blue hibernates as a caterpillar, and in all parts of its range has one generation a year. We treat Plebejus glandon as separate from P. aquilo (BOISDUVAL, 1832) (see next species) and P. zuellichi (HEMMING, 1933) (which is endemic to the Sierra Nevada and was not modelled here due to its restricted distribution), while other authors split the species into three subspecies.
Andorra / Austria / France / France: Mainland / Germany / Italy / Italy: Mainland / Liechtenstein / Spain / Spain: Mainland / Switzerland /