Very rare butterfly 'recolonising Wales'

ONE of the rarest butterflies in the UK appears to be recolonising Wales decades after the last population died out.

- 

National charity Butterfly Conservation has recorded the endangered Wood White at four sites in Powys this summer - including a female laying eggs.

‘The species used to have a permanent colony in southeast Wales but that died out several decades ago and there have only been sporadic sightings since.

Butterfly Conservation says the new arrivals have almost certainly come from sites just over the border in Shropshire where it has been doing targeted conservation work to maintain Wood White populations in England.