Andrena hattorfiana is a species of mining bees belonging to the family Andrenidae subfamily Andreninae.

[1] Dry nutrient rich and poor meadows, flood dams, road embankments, forest edges.

These nests are made in dry parts of a traditionally managed hay field in medium pressure horse-graze pastures with sparse vegetation and on human-trampled paths.

Furthermore, this species is endangered as these bees are often infected by a host specific cleptoparasite called Nomada armata which parasitizes a big proportion of brood cells in local populations.

But the main reason is the reduced food-plant distribution because of larger farm units and not a lot of traditionally managed meadows.

[2][3][4] Therefore, Andrena hattorfiana is endangered because of pollen competition, not enough variability in their habitat, and because of there not being enough traditionally managed meadows.