Pterostichus alternans (Casey, 1920) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Insecta order Coleoptera family Carabidae genus Cyclotrachelus species Cyclotrachelus alternans Name Homonyms Pterostichus alternans (Carret, 1897) Pterostichus alternans (Casey, 1920)