Trachyderas Philippi & Philippi, 1864: 349 –350

Type species: Trachyderas cancellatum Philippi & Philippi, 1864: 350 (junior synonym of Trachyderas costulatum (Fairmaire & Germain, 1860: 2) [ Bolitophagus]), by monotypy.

Distribution: Chile.

Included species (1). T. costulatum (Fairmaire & Germain, 1860: 2 [ Bolitophagus Illiger], combination by Gebien, 1939: 759 as Trachyderas costulatus and noted with an “a.” = aberration of cancellatum; = T. cancellatum Philippi & Philippi, 1864: 350, combination by Blackwelder, 1945: 526, see also Peña, 1966a: 437).