Platidiolus Chaudoir, 1878

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 469-470

Genus Platidiolus Chaudoir, 1878

Platidiolus Chaudoir, 1878: 77 (as Piatidiolus ). Type species: Platidiolus rufus Chaudoir, 1878 by monotypy. Etymology. From the generic name Platidius and the Latin suffix - olus (little, small), alluding to the smaller size of adults of the Platidius -like species (" infiniment plus petit que le Platidius depressus ") [masculine]. Note. Platidiolus is an incorrect subsequent spelling of Piatidiolus in prevailing usage and attributed to the publication of the original spelling; therefore, it is deemed to be the correct original spelling (ICZN 1999: Article 33.3.1).

Patroboidea Van Dyke, 1926a: 67. Type species: Patroboidea rufa Van Dyke, 1925 (= Platidiolus vandykei Kurnakov, 1960) by monotypy. Synonymy established by Kurnakov (1960: 275). Etymology. From the generic name Patrobus [q.v.] and the Greek suffix - oidea (like, resembling), alluding to the resemblance of the adults to those of some species of Patrobus ("it belongs near the genus Patrobus , and in general has much the appearance of the flatter members of that genus") [feminine].

Diversity.

Five species in Siberia (four species) and western North America (one species).