Subfamily - Lucaninae

Apterodorcus bacchus (Hope, in Westwood,1845)
Dist - Rio Negro, Nahuel Haupi, Neuquen (Cordillera).

Chiasognathus grantii (Stephens,1831)
Dist - Rio Negro, Nahuel Haupi, Neuquen (Cordillera).

Chiasognathus latreillei (Solier,1851)

Pycnosiphorus caelatus (Blanchard,1842)
Dist - Neuquen (Chosmalal)
Checklist of Lucanidae of
Subfamily – Aesalinae (MacLeay 1819)
Hilophyllus argentinensis (Martínez,1981) (Ceratognathus) also
Subfamily - Lampriminae (Macleay, 1819)
Streptocerus speciosus (Fairmaire,1850) also
Subfamily - Lucaninae (Latreille,1804)
Apterodorcus bacchus (Hope, in Westwood,1845) (Lucanus) also
Beneshius buckleyi (Waterhouse) Also Bolivia,Peru,Brazil,Colombia,Ecuador,Peru
Beneshius tucumanus (Nagel,1932) (Sclerostomus)
Chiasognathus grantii (Stephens) also Chile
Chiasognathus jousellinii (Reiche,1850) also
Chiasognathus latreillei (Solier,1851) also Chile
Leptinopterus erythrocnemus (Burmeister,1847) (Psalidostomus)
Leptinopterus femoratus (Olivier,1789) (Lucanus) also
Pycnosiphorus caelatus (Blanchard,1842) (Lucanus) also
Pycnosiphorus fairmairii (Parry,1864) (Sclerostomus) also
Pycnosiphorus femoralis (Guérin-Méneville,1839) (Dorcus) also
Sclerostomus truncatus (Lüderwaldt,1935) also
Scortizus pulverosus (Westwood, 1875) ???
Related links:
Annotated Checklist of the New World Lucanidae