Sclerostomus tuberculatus (Solier, 1851)
....Dorcus tuberculatus Solier, 1851: 54 (original combination).

Distribution: Central Chile, adjacent parts of Argentina.

Paulsen, M.J. 2005. A revision of the southern South American stag beetles of the genus Sclerostomus Burmeister (Coleoptera: Scarabaeoidea: Lucanidae). Zootaxa 1060: 1-26. Download here.

Weinreich, E. 1960. Revision südamerikanischer Lucanidae (Ins. Col.), II. Die Gattungen Charagmophorus, Metadorcus, Scortizus, Apterodorcus, Beneshius, Sclerostomus und Pycnosiphorus. Senckenbergiana Biologica 41: 41-95.

Remarks:

One of the 2 species of South American Lucaninae in which the males and females are almost indistiguishable externally (the other being S. nitidus, both are in the subgenus Sclerostomulus Weinreich). This species probably lives in standing dead wood, as it is only rarely found in fallen branches or logs on the ground.