vertical closeup on a female gray-backed mining bee, andrena vaga, sitting on top of a goat willow catkin

arthropoda andrena vaga andrenidae arthropod bee hymenoptera insect nature strepsiptera stylops ater adult animal backed biology close closeup detail endoparasite endoparasitic entomology fauna fluffy grey greybacked hairy invertebrate macro mining natural one outdoor pollination pollinator single solitary white wild wildlife wing vertical female graybacked sitting top goat willow catkin