close up of a the cleptoparasite solitary bee black-thighed epeolus variegatus on a yellow flower with green background

kleptoparasitic cleptoparasite kleptoparasite magnification blackthighed biodiversity invertebrate hymenoptera variegatus background arthropoda entomology pollinator variegated arthropod cuckoobee solitary apiaceae outdoors parasite wildlife epeolus natural antenna biology thighed closeup ecology yellow flower europe insect nature animal cuckoo detail europa single close green black macro wild bee one red eye