Celastrina argiolus (Linnaeus, 1758) Species
Last modified: Jan. 14, 2026, 8:18 p.m.
Widespread and common all over Belgium. Not threatened.
Details
- Classification
- Family: Lycaenidae > Subfamily: Polyommatinae > Tribus: Polyommatini > Genus: Celastrina > Species: Celastrina argiolus
- Vernacular names
- Boomblauwtje (NL), Holly Blue (EN), Azuré des nerpruns (FR), Faulbaumbläuling (DE)
- First mention in Belgium
- De Sélys-Longchamps E. 1837. Catalogue des Lépidoptères ou Papillons de la Belgique, précédé du tableau des Libellulines de ce pays. — — : 1–29. On page 17 (as Polyommatus Argiolus). view page
- Status
-
Native
Distribution
Imago
Museum specimens
No pictures yet!Specimens in nature
Egg
Egg deposit on flower buds.
No pictures yet!
Bionomics
The larva is attended by different species of ants. Hibernates as a pupa.
No pictures yet!
Flight periods
The adults fly usually in two generations a year from early April till early June and again from the end of June till beginning September. In favourable years a third generation occurs from the end of August till mid-October.
