large, slow flying, in snow tussock
16 mm

Conforms to Swederus’ original description (see Crosskey 1970) and is consistent with Malloch’s 1932 diagnosis of the genus Hystricina (now Bothrophora) in having 12 marginal scutellar bristles.

large, slow flying, in snow tussock
15.5 mm

Conforms to Swederus’ original description (see Crosskey 1970) and is consistent with Malloch’s 1932 diagnosis of the genus Hystricina (now Bothrophora) in having 12 marginal scutellar bristles.