Huang and Chen (2013) separated Serognathus from the genus Dorcus by representing morphological characters and DNA analysis.

It has an elongated, somewhat flat body dull black with blackish antennae and legs.

[2] This species is widely distributed in Indonesia, the Philippines, Malaysia, Thailand, Vietnam, Laos, Myanmar, India, Japan, China, Taiwan and Korea.

[citation needed] However, most are imported for sport, decorative show, or to be kept as an exotic pet.

Hiroshi Fujita, a Japanese collector from the Mushi-sha insect shop, described over 20 new subspecies of S. titanus in his book "The Lucanid Beetles of the World".