The ventral arm plates are wide, pentagonal, with an obtuse proximal angle and convex distal edge, which may sometimes be medianly indented; they are separated from one another.

Scutum: As wide as or a little wider than long, widest a little posterior to mid length, 1.6 x 1.7 mm- 2.4 x 2.4 mm, flat medianly, convex external to the long, strong lateral carinae; anterolateral margins practically straight, posterolateral margins mildly concave; posterior anle broadly rounded.