Butterflies - Holly Blue (Celastrina argiolus)
The Holly Blue is frequently seen in suburban gardens where its larval foodplants (Holly and Ivy) occur.
The adult Holly Blue emerges early in spring, well before any other blue butterflies. Unlike other blues, the Holly Blue tends to fly high up around trees and bushes in full sunlight. The males can sometimes be found at ground level taking salts from dried up puddles in summer.
In flight, these butterflies have a silvery appearance.
- Larval Food Plants
- Key Sites
Holly (Ilex aquifolium)
Eggs laid and larvae feed on developing flower buds and berries of holy in the spring - April to June.
Ivy (Hedera helix)
Eggs laid and larvae feed on developing flower buds and berries of Ivy in the autumn - August to September.
Can be found almost anywhere, even in city centres. Gardens, public parks, disused railway lines, hedgerows, field margins and woodland rides where both Ivy and Holly (the larval foodplant) can be found are the best places to find this butterfly.
Resident in Warwickshire.
Swift Valley (WWT Reserve)
Hampton Wood and Meadow (WWT Reserve)
Harbury Spoilbank (WWT Reserve)
Stockton Cutting (WWT Reserve)
Welches Meadow (WWT Reserve)
Henley Sidings (WWT Reserve)
A photographic slideshow displaying various images of the Holly Blue is currently in development.
Details of how you can supply your own photographs for display here will be made available soon.
The flight chart below is based on observations of the adult Holly Blue butterfly in Warwickshire between 2005 and 2008. Peak periods are shown in dark green.