Sphaenognathus Buquet, 1838.
.....Sphaenognathus Buquet, 1838: 104.
.....Orthognatus Dejean, 1833: 174. (nom. nud.)
.....Orthognathus Dejean, 1837: 193. (nom. nud.)
.....Chiasognathinus Didier in Didier & Séguy, 1953: 24. (synonym)
.....Sphaenognathinus Chalumeau & Brochier, 1995: 20. (synonym)
.....Chiasornithodus Chalumeau & Brochier, 1995: 20. (synonym)

Distribution: Neotropical South America (Andes): Bolivia, Colombia, Ecuador, Peru, and Venezuela.

Biology:

Bartolozzi, L. and G. Onore. 1993. Observations on the biology and behaviour of Sphaenognathus oberon Kriesche (Coleoptera: Lucanidae). Coleopterists Bulletin 47(2): 126-128.

Bartolozzi, L., H.E. Bomans, and G. Onore. 1992. Contributo alla conoscenza dei Lucanidae dell'Ecuador (Insecta, Coleoptera). Frustula Entomologica, Nuova Serie 14 (27): 143-246.

Chalumeau, F., and B. Brochier. 2007. Chiasognathinae [Chiasognathini] of the Andes. Taita Publishers. Hradec Králové, Czech Republic. 324 pp.

Onore, G. 1994. Description of the immature stages of six species of Sphaenognathus, with comparative notes on phylogeny and natural history (Insecta: Coleoptera: Lucanidae). Annals of Carnegie Museum. 63(1): 77-99.

Composition: 28 species.

Taxonomy:

Moxey, C.F., 1962. A redescription of the Tribe Chiasognathini, with the descriptions of a new species and a new subspecies of the genus S. Buquet (Coleoptera: Lucanidae). Entomological News 73:197-203.

Keys to Species:

Bartolozzi, L., H.E. Bomans, and G. Onore. 1992. Contributo alla conoscenza dei Lucanidae dell'Ecuador (Insecta, Coleoptera). Frustula Entomologica, Nuova Serie 14 (27): 143-246.

Chalumeau, F., and B. Brochier. 2007. Chiasognathinae [Chiasognathini] of the Andes. Taita Publishers. Hradec Králové, Czech Republic. 324 pp.

Species profiles: (click species name when available)

S. alticollis Möllenkamp S. armatus Parry S. bellicosus Boileau S. bordoni Brochier & Chalumeau S. curvipes Benesh S. feisthamelii (Guérin-Méneville) S. furumii Lacroix S. garleppi Boileau S. gaujoni (Oberthür) S. giganteus Boileau S. higginsi (Parry) S. kolbei Kreische S. lindenii Murray S. mandibularis Boileau S. metallescens DeLisle S. metallifer Bomans & Lacroix S. monguilloni Lacroix S. nobilis Parry S. oberon Kreische S. peruvianus (Waterhouse) S. prionoides Buquet S. pseudocurvipes Baba S. pubescens Waterhouse S. rotundatus Lacroix S. signatus Parry S. spinifer Boileau S. taschenbergi Parry S. xerophilus Bartolozzi & Onore