Apotetamenus Brunner von Wattenwyl, 1888

Comments. This genus is found in the lowlands of South America, and groups three species: Apotetamenus amazonae Brunner von Wattenwyl, 1888 (type species, Western Amazon and Amazon foothills, between Bolivia and Ecuador), A. clipeatus Brunner von Wattenwyl, 1888 (Bolivia, southeastern Brazil and northern Argentina) and A. gorochovi Cadena-Castañeda & Cortés-Torres, 2013 (Colombia, Guainia, Amazon region) (Cadena-Castañeda & Cortés-Torres 2013, Cigliano et al. 2022) (Map 2).

It is distinguished from the other Lutosinae /ini, because the pronotum is elongated, and covers the other thoracic segments, and in some specimens even the first abdominal tergites (Fig. 15A,B). In addition, the species with known males (except A. gorochovi), has the last tergite narrow, paraprocts thick, pointed, and sclerotized, and subgenital plate without styli.