Schizochelus Blanchard, 1850

Gastrohoplus Moser, 1921: 165, syn. nov. Type species: Gastrohoplus mirabilis Moser, 1921 (designation: monotypy).

Type species

Schizochelus flavescens Blanchard, 1850 (designation: Evans 2003: 346).

Diagnosis

Clypeal anteroventral area strongly reduced (Fig. 15, similar to Fig. 11 H); pronotal anterior and posterior margins not beaded; prosternum with an anterior longitudinal carina; protibia with 1–2 external teeth (male with tooth II absent or reduced) and with a spur (Fig. 16 G–L); male metatibia without spur; male ventrites I–V longitudinally concave (Fig. 16 A–C); female abdomen sinuous in lateral view (Fig. 16 D); tarsal claws with a proximal tooth (Fig. 16 G–L).

Remarks

The genera Isonychus and Schizochelus are similar to each other. Schizochelus is distinguished as follows (opposition to Isonychus): male metatibial spur absent (metatibia with 1–2 spurs); male ventrites I–V with medial concavity (Fig. 16 A–C) (without), male ventrite VI straight and with short and sparse setae (straight or laterally enlarged, and with or without lateral comb of long setae); female abdomen sinuous in lateral view (Fig. 16 D) (convex).

The present study proposes the synonymy of Gastrohoplus with Schizochelus, see chapter on “Male morphology and nomenclature” (below) for more information about the new synonymy.