closeup on an endangered female nycthemeral miner solitary bee, andrena nycthemera crawling entering her nest

arthropoda andrena nycthemera andrenidae arthropod bee belgium dawn ecology europe hymenoptera insect location nature status animal biology closeup endangered entomology female ground hairy invertebrate macro mining nest nycthemeral miner outdoors pollinator protected red list reproduction sand single solitary wild wildlife grey entrance yellow pollen