closeup on a male buff-tailed mining bee, andrena humilis with it's typical white clypeus

arthropoda andrena humilis andrenidae arthropod bee bufftailed catsear mining ecology hymenoptera insect nature animal asteraceae biology buff close closeup detailed entomology food preference hairy host plant invertebrate macro male oligolectic outdoor pollen yellow pollinator rare single solitary specialist tailed taraxacum officinale wild wildlife facial its typical white clypeus