 The Joint Nature Conservation Committee recognise Psylliodes luridipennis as a " priority species " for conservation purposes , due to the fluctuating numbers of Lundy cabbages . Though the committee notes that " [ h ] ost plant numbers have been low , but relatively stable since 2001 " , it claims that P. luridipennis " has been noticeably difficult to find in recent years " . Based on pre @-@ 1994 IUCN Red List guidelines , the species was informally deemed as " vulnerable " . 
