closeup on a fluffy grey male of the endangered nycthemeral miner solitary bee, andrena nycthemera, sitting on a twig

arthropoda andrenidae arthropod bee belgium ecology europe hymenoptera insect magnification nature status animal biology close closeup detailed entomology invertebrate macro natural one outdoors pollinator single solitary wild wildlife fluffy grey male endangered nycthemeral miner andrena nycthemera sitting twig