Revue suisse de Zoologie (March 2018) 125(1): 165-188 ISSN 0035-418 A revision of the Chilean Brachyglutini – Part 3. Revision of Achilia Reitter, 1890: A. frontalis species group (Coleoptera: Staphylinidae: Pselaphinae) Sergey A. Kurbatov1, Giulio Cuccodoro2* & Giorgio Sabella3 1 Museum of Entomology, All-Russian Plant Quarantine Center, Pogranichnaya 32, Bykovo 140150, Russia. E-mail:
[email protected] 2 Muséum d’histoire naturelle, C.P. 6434, CH-1211Genève 6, Switzerland. 3 Dipartimento di Scienze Biologiche, Geologiche ed Ambientali dell’Università – sezione Biologia Animale, via Androne 81, I-95124 Catania, Italy. E-mail:
[email protected] * Corresponding author, E-mail:
[email protected] Abstract: The Achilia frontalis species group (sensu Jeannel, 1962, 1964) of the species-rich genus Achilia Reitter, 1890 is revised. Of the thirteen taxa placed in this group of species, fi ve names are here synonymised: A. validicornis Jeannel, 1962 = A. excisa (Schaufuss, 1880) (syn. nov.), A. pseudovalidicornis Franz, 1996 = A. pachycera Jeannel, 1963 (syn. nov.), A. acicularis Jeannel, 1962 = A. testacea Jeannel, 1962 (syn. nov.), A. foveifrons Jeannel, 1962 = A. frontalis Jeannel, 1962 (syn. nov.), and A. validicorniformis Franz, 1996 = A. larvata (Reitter, 1885) (syn. nov.). Lectotypes are designated for A. excisa and A. validicornis. The remaining eight species are redescribed, their main diagnostic features are illustrated, their distributions are detailed, and data available on habitat/collecting are summarised. Two new species – Achilia trauco sp. nov. and Achilia fi ura sp. nov. – are also described and added to the group, while A. longispina Franz, 1996, is removed from it. Keywords: Chile - taxonomy - new species - new synonyms - distribution.