Large Blue (Maculinea arion)

 

Successfully reintroduced to sites in the Poldens where it is slowly extending its range due to active habitat creation and management. A quite distinctive species, the sexes are rather similar, the male being slightly smaller and with less heavy spotting on the wings. 

Because of its scarcity, a distribution map showing sites is not given but Somerset Wildlife Trust's Green Down reserve and Collard Hill, a National Trust site are both usually reliable locations.

 

Somerset Wildlfie Trust - Green Down

National Trust - Collard Hill

 

Images L-R: female egg-laying on wild thyme, the young caterpillar's foodplant; underside

Flight period: usually mid June to mid July.