Calvatomina opalina G.Bretfeld, 1999 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Collembola order Symphypleona family Dicyrtomidae genus Calvatomina species Calvatomina rufescens Name Homonyms Calvatomina opalina (Folsom, 1896) Calvatomina opalina G.Bretfeld, 1999