|Home||The Butterflies of Gloucestershire||Species||Habitats||Conservation|
Brown HairstreakThecla betulae
|Male, 16 August 1988||Female, 27 August 1978|
The Brown Hairstreak is a scarce species which needs open woodland
or hedgerows with a lot of Blackthorn (Prunus spinosa).
|Woodland ride edged by Blackthorn, a suitable habitat for Brown Hairstreak|
The Brown Hairstreak depends mainly on hedgerows, and its early
stages are vulnerable to their management by heavy mechanical
Destruction of hedgerows to make larger fields is also a threat to the species.
Flight PeriodThe adult butterflies are usually seen in August and September.
DistributionThe Brown Hairstreak has colonies in north Wiltshire, and the species has been recorded recently for certain on two occasions in Gloucestershire very close to the county border. One of these records was of an egg in winter (the eggs are quite easy to identify).
Males of the day-flying Vapourer moth are sometimes mistaken for Brown Hairstreak.
A South Gloucestershire colony appears to have died out, with no recorded sightings for many years. Early in the 20th century the species had colonies close to Gloucester.
|No map - species found in just one place|