Brown Argus butterfly

Aricia agestis

family - Lycaenidae (Blues, Coppers & Hairstreaks)

Image of Brown Argus butterfly

The Brown Argus butterfly is mainly brown on the upper side of the wings, with a white fringe and orange markings. The underside of the wings is greyish-brown with white-ringed black spots and orange markings.

My personal observations of the Brown Argus butterfly

months seen in my garden: August & September

garden plants that attract this species: Hebe, Heliotrope, Verbena (also possibly Lavender, Lobelia and Marigold)

Butterfly sighting 2005:

A Brown Argus was feeding on Hebe Josephine, 18 August 2005

Memorable digital images of 2003:

The following images were taken on 13 September 2003, when a fresh-looking Brown Argus butterfly visited Verbena bonariensis in my back garden.

thumbnail link Side view.

thumbnail link Side view.

thumbnail link Top view.

thumbnail link Top view.

A memorable slide from 2003:

Brown Argus Side View. Guided walk along Thames Path. 3 August 2003.

Images from 2000:

A Brown Argus came to visit my front garden on 30 August 2000.

thumbnail link On Heliotrope.

thumbnail link On Heliotrope.


The Brown Argus butterfly is a rare garden visitor.


Difficult to distinguish from the Common Blue butterfly: the Common Blue has two significant spots on the underside of the forewing, where the Brown Argus has just one.

missing spot location for identification


Reference Section

Size: 29mm (smaller than the Small White - see list of butterflies by size)

First Generation flight period: May-June
Second Generation flight period: July-September

Larval Food Plants: Rock Rose
Wild Nectar Plants: Clover

Family Group: Lycaenidae - see list of butterflies by family

This page last updated: 8 December, 2005