closeup on a male grey hairy nycthemeral mining bee, andrena nycthemera on a lichen covered piece of wood

biodiversity invertebrate nycthemeral hymenoptera nycthemera arthropoda andrenidae endangered entomology pollinator arthropod protected detailed flanders outdoors solitary wildlife closeup andrena covered belgium biology mining lichen europe insect nature animal single hairy piece macro miner male grey wood dawn list wild bee red