It is difficult to distinguish the sexes by sight, both of which have short, backwards-curving horns.
Both sexes have short, backwards-curving horns. It is difficult to distinguish the sexes by sight.
It is difficult to distinguish the sexes by sight. Both sexes have short, backwards-curving horns.
It is difficult to distinguish the sexes by sight. Both sexes have short, backwards-curving horns.