Canthidium (Neocanthidium) coerulescens Balthasar, 1939

Canthidium coerulescens Balthasar, 1939: 117 [transferred to Neocanthidium by Vulcano & Pereira (1967: 592); transferred to Canthidium (Canthidium) by Martínez & Halffter (1986a: 26); here transferred to the subgenus Neocanthidium]. Type locality: Ecuador: “eastern mountain range”: “Teremotillo, Iivaria”, and Santa Inéz (“ Ecuador, Ostcordillieren, Teremotillo, Iivaria, (leg. Ohaus) und Santa Inéz (leg. Hensch)”. Type material: According to Bezděk & Hájek (2012), two unsexed syntypes in NMPC—ex Balthasar collection; also a unknown number of syntypes in SMFG. Distribution: Ecuador (Martínez & Halffter 1986a).

Canthidium (Neocanthidium) convexifrons Balthasar, 1939

Canthidium convexifrons Balthasar, 1939: 119 [here transferred to the subgenus Neocanthidium]. Type locality: Colombia: Valle del Cauca and “Pischindé” (“ Colombia, Pischindé und Cauca-Tal”). Type material: According to Bezděk & Hájek (2012), one female syntype in NMPC—ex Balthasar collection; also, an unknown number of female syntypes in SMFG. Distribution: Colombia (Martínez & Halffter 1986a).