Wednesday, 15 February 2012

Green Hairstreak Butterfly

Scientific Name: 
Callophrys rubi
Wingspan (mm): 
27-34mm

Description

The underwings are a bright green yellow ground colour, with a white faint broken line on the forewing and a clear white broken line on it's hindwing. The upperside is a rich chocolate brown - the males have a small oval patch at the front of it's forewing. The upperside is rarely seen when at rest as it usually has it's wings closed.

Distribution

Although this is a widespread species, it often occurs in small colonies and has undergone local losses in several regions.

Habitat

Green Hairstreak colonies may be found on calcareous grassland, woodland rides and clearings, heathland, moorland, bogs, railway cuttings, old quarries, and rough, scrubby grassland. This species occurs on a wide range of soils but is strongly associated with scrub and shrubs, which are usually present at sites where it breeds.

Diet

Common Rock-rose and Common Bird's-foot-trefoil are used on calcareous grassland, while Gorse, Broom, and Dyer''s Greenweed are used on heathland and other habitats. Bilberry is used almost exclusively on moorland and throughout Scotland. Other foodplants include shrubs such as Dogwood, Buckthorn, Cross-leaved Heath, and Bramble.

Status

UK Biodiversity Action Plan: not listed Butterfly Conservation priority: medium European threat status: not threatened