B. griseostriatus (a), B. inexpectatus (b, c), B. multilineatus (d) and B. alpestris (e–j) at higher magnification, for detailed comparison a B. griseostriatus, ♂, C-banded, Petit St Bernard (as fig. 2m) c, d B. inexpectatus, paratypes b plain (Giemsa stained) c C-banded c is the nucleus shown as fig. 2i by Dutton and Angus (2007), here somewhat rearranged d B. multilineatus, ♂, Scotland e–j B. alpestris e paratype ♂, Italy, Dolomites, Falcade, shown as fig. 2f by Dutton and Angus (2007) f, g ♂, Italy, Gran Paradiso, Colle del Nivolet e plain f C-banded, shown as fig.1b, c by Angus et al. (2017) h, i ♀, Switzerland, Ticino, San Bernardino pass h plain i C-banded, shown as fig. 1d, e by Angus et al. (2017) j paratype ♀, Switzerland, Ticino, Medeglia, plain, shown as fig. 2g by Dutton and Angus (2007). Scale bar: 5 µm.