Bicristella acerba (Cresson, 1874) Cresson, 1874 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Insecta order Hymenoptera family Ichneumonidae genus Polycyrtus species Polycyrtus acerbus Name Homonyms Bicristella acerba (Cresson, 1874) Cresson, 1874