Taxonomy
In 2011, the genus ''Serrognathus'' was reclassified and merged into the genus ''Dorcus''. Previously, specimens with serriform teeth on the mandibles and sable pigment were separated from specimens with a singular or multiple bulky notches on the mandibles and lustrous sable pigmentation which were placed in the genus ''Dorcus''. Latterly, the genus has been resurrected and is once again accepted as valid.Species
The following species are recognised in the genus ''Serrognathus'': *'' Serrognathus alcides'' *'' Serrognathus bucephalus'' *'' Serrognathus cofaisi'' *'' Serrognathus consentaneus'' *'' Serrognathus costatus'' *'' Serrognathus damoiseaui'' *'' Serrognathus eurycephalus'' *'' Serrognathus kyanrauensis'' *'' Serrognathus miwai'' (Benesh, 1936) *'' Serrognathus platymelus'' (Saunders, 1854) *'' Serrognathus reichei'' (Hope, 1842) *''Distribution and habitat
Species in this genus are found in China, Malaysia, Vietnam, Philippines, Korea, India, and Australia.Threats
In view of their impressive jaws, specimens are often mounted for display alongside with butterflies and tarantulas. Unfortunately, as wild specimens are collected for mounting it should be expected that there will be a corresponding decline in wild populations.References
Taxa described in 1861 Lucaninae Scarabaeoidea genera {{Lucanidae-stub