Iolas blue - Iolana iolas


Family: Lycaenidae.

Flight Time: May - July

Size: mm

Altitude: 100-1700m

The Iolas blue is a large sized blue butterfly. The female above has heavy dark borders, where as the male is largely blue on the upperside.

The underside has a series of grey spots across both wings, which is a useful aid to identification.

These photos are courtesy of Mark Ogden, who took them in Bulgaria

Fact File

Similar Species Foodplants Habitat Distribution

Glaucopsyche melanops

Colutea spp.

Dry bushy places

Iolas blue distribution.


Early Stages




All pictures in these pages copyright to Simon Coombes. Permission must be sought and obtained for any use.