The Brown Argus

I really enjoy my visits to Warham Camp in the summer.  The two huge ring ditches that surround the 2,000 year old Iron Age fort are made of chalk.  This has created a rare habitat for Norfolk and many beautiful plants grow on the steep sides, these in turn support a healthy population of fascinating insects including the Brown Argus (Aricia agestis).

Male Brown Argus keeping watch from atop a stinging nettle while my knees suffered!

Last week while watching the Common Blues I was keeping my eyes open for this small butterfly.  Due to size, colouration and the speed they move at they can be difficult to spot, however they are fiercely territorial and will launch themselves at any unsuspecting passing insect, and this is what gave away the presence of this fellow.  Unfortunately for me he had chosen a bed of stinging nettles to defend, and although he allowed me to approach to within a few inches, I swear you could hear him laugh as my knees got badly stung!

Enjoying the sun

The Brown Argus is found in the southern half of the UK.  It has a wingspan of 25-31mm (1- 1 1/4 inches).  The caterpillars feed on common rock-rose or cranesbill.  The adults emerge in May and June with a second brood late July through to September.  They prefer sunny chalk downs but can also be found in coastal sites.


26 thoughts on “The Brown Argus

  1. Another crisp shot (worth inconvenience to get it). Always have to chuckle a bit when I read about butterflies being so aggressive – not what you would expect from seeing such delicate creatures.

    Liked by 1 person

    1. Some have to be seen to be believed! they will batter themselves ragged like drunken youths on a night out after the girls. The best (beast) is the Purple Emperor, this beauty even attacks birds! not a joke they are mental! They will be out in a couple of weeks so watch this space.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s