High incidence of infection of an undescribed microsporidium (Microspora) in the communal bee Andrena scotica (Hymenoptera, Andrenidae) R. J. Paxton, I. Fries, N. J. Pieniazek and J. TengöApidologie, 28 3-4 (1997) 129-141DOI: https://doi.org/10.1051/apido:19970304