Dichotomius (Cephagonus) Luederwaldt, 1929

Dichotomius (Cephagonus) Luederwaldt, 1929 View in CoL

Type species: Pinotus fissus Harold, 1867 View in CoL , designated by Nunes and Vaz-de-Mello (2019)

Diagnosis: distinguished from other subgenera of Dichotomius by the following combination of characters: Clypeus with two acute and conspicuous teeth ( Fig.3e, g View Figure 3 ). Clypeal or genal external border straight, without division ( Fig. 3e, g View Figure 3 ). Ventral clypeal process transversely carinate, strongly bifurcate at apex. Protibiae inner angle acute or spiniform. Males with sixth abdominal ventrite with constriction at the medial portion ( Fig. 3f View Figure 3 ). Females sixth abdominal ventrite bearing modifications at medial portion (tubercles, lobe or emarginations) and/or pygidium swollen ( Fig. 3h View Figure 3 ). Parameres lacking or having basal and longitudinal excavations; subgenital plate present in ventral view, apex and base round, acute and/or emarginated; base, at junction with phalobase, produced in a membranous excavation or sclerotised– if sclerotised, having grooves or excavations. Panama to northern Argentina (modified from Nunes and Vaz-de-Mello (2019)).