Genus 4. ECHINOPLA HNS.

Echinopla HNS, Smith, Proc. Linn. Soc. ii. 79 (1857).

Head transverse; eyes small, placed laterally, high on the head, on the top of short pedestals; antennae 12-jointed, inserted forwards on the head, wide apart; labial palpi 4-jointed, the three basal ones of about equal length, clavate, the apical joint as long as the two preceding joints united. Maxillary palpi 5- jointed, elongate, the three apical joints long and slender, the two basal ones much shorter and stouter. Mandibles short, stout, and of equal width throughout, armed with four teeth at the apex. Thorax oblong-quadrate; legs of moderate length; tarsi 5-jointed, each tibia armed with a single spine at the apex. Ab- domen globose; peduncle formed of a single node; the first segment very large, concealing the other segments beneath it.