tokens: Butterflies recorded here include the small blue ( " Cupido minimus " ) , marbled white ( " Melanargia galathea " ) , dingy skipper ( " Erynnis tages " ) , grizzled skipper ( " Pyrgus malvae " ) , small pearl-bordered fritillary ( " Boloria selene " ) , and wall brown ( " Lasiommata megera " ) .