But they are rare even in parts of their core range ; both in Great Britain and North America for example , only one species is found -- the Twenty-plume Moth ( `` Alucita hexadactyla '' ) -- and in the latter region , it is introduced .
They are rare even in parts of their core range ; both in Great Britain and North America for example , only one species is found -- the Twenty-plume Moth ( `` Alucita hexadactyla '' ) -- and in America , it is introduced .