big golden-green beetle spanish fly, cantharis lytta vesicatoria. the source of the terpenoid cantharidin, a toxic

beetle lytta green fly cantharidin toxic spanish aphrodisiac bug insect closeup nature animal wildlife fauna invertebrate macro biology coleoptera bright meloidae shines poison pest metallic wild shiny agriculture insecta awful iridescent blister cantharis damage emerald goldengreen hexapod imago gardening detail plant outdoor meadow leaf grass