Stag beetles are a family of about 1,200 species of beetles in the family Lucanidae, currently classified in four subfamilies. Some species grow to over 12 centimetres, but most to about 5 cm (2 in).
Prosopocoilus giraffa, the giraffe stag beetle, is the world's largest stag beetle and is a member of the family Lucanidae within the order Coleoptera. They have very long, toothed and notched mandibles that protrude about half the size of their body. They tend to be aggressive and are fierce and powerful. Males fight each other using these strong and enlarged jaws to lift and throw rivals to win a mate. They can grow up to 119 millimetres in length. Several distinctive populations (subspecies) are found in moist forested region areas of Asia, ranging from India to Indonesia. Prosopocoilus giraffa keisukei can measure up to 12 centimeters. Prosopocoilus giraffa daisukei have the brightest elytra of all subspecies and Prosopocoilus giraffa giraffa is the smallest subspecies.
Lucanus cervus, known as the European stag beetle, or the greater stag beetle, is one of the best-known species of stag beetle in Western Europe, and is the eponymous example of the genus. L. cervus is listed as Near Threatened by the IUCN Red List.
Dorcus titanus is a beetle of the family Lucanidae. It was described by Jean Baptiste Boisduval in 1835. Huang and Chen (2013) separated Serognathus from Dorcus by representing morphological characters and DNA analysis.
Lucanus capreolus, the reddish-brown stag beetle or pinching beetle, is a beetle of the family Lucanidae. The specific name capreolus is derived from Latin, meaning "roe deer". The name refers to the resemblance of the mandibles to deer antlers.
Prosopocoilus savagei is a beetle of the Family Lucanidae. It is found in Central and East Africa. It measures about 24–65 mm in males and 21–31 mm in females.
The Lucanidae are a family of beetles that include the stag beetles. The family can be further subdivided in a taxonomy. The classification presented here follows Smith (2006), with the exception of the tribal classification within the Lucaninae.
Chiasognathus grantii is a species of stag beetle found in Argentina and Chile. It is known as Darwin's beetle, Grant's stag beetle, or the Chilean stag beetle.
Cyclommatus metallifer is a species of stag beetle in the family Lucanidae. There is sexual dimorphism within the species. Males are generally larger in size and have enlarged mandibles. It is named for its metallic coloration, which ranges in color and may be varying levels of black, brown, or gold. This species is notably easy to maintain, making it a useful species for scientific study. Additionally, it has been kept as an exotic pet.
Cyclommatus is a genus of the family Lucanidae, also known as the stag beetle. The majority of the species from the genus Cyclommatus are located in Southeast Asia, though some species are found in China and Taiwan as well. The genus Cyclommatus also consists of three subgenera: Cyclommatus, Cyclommatinus and Cyclommatellus. Each subgenera contains 80, 24 and 3 species respectively. In total, the genus Cyclommatus consists of a total of 134 species, though more are still being discovered to this day.
Hexarthrius parryi, the fighting giant stag beetle, is a species of large stag beetles. It belongs to the genus Hexarthrius of the tribe Lucanini. It is classified under the subfamily Lucaninae of the stag beetle family Lucanidae.
Lamprima aurata, the golden stag beetle, is a species of beetle in the family Lucanidae. In Tasmania, this species is referred to by the "common name" of Christmas beetle, a name that is normally used for beetles in the family Scarabaeidae, genus Anoplognathus.
Odontolabis gazella is a species of beetle belonging to the family Lucanidae.
Geodorcus helmsi,New Zealand giant stag beetle or Helms's stag beetle is a large, slow-moving, flightless stag beetle in the family Lucanidae. It is endemic to New Zealand.
Geodorcus capito is a large flightless species of stag beetle in the family Lucanidae. It is endemic to the Chatham Islands in New Zealand.
Geodorcus alsobius, or Moehau stag beetle, is a large flightless species of stag beetle in the family Lucanidae. It is found only on Mt Moehau, the highest mountain in the Moehau Range on the Coromandel Peninsula in New Zealand.
Geodorcus ithaginis, the Mokohinau stag beetle, is a large flightless species of stag beetle in the family Lucanidae. It was described by Thomas Broun in 1893 after being discovered in the Mokohinau Islands by Andreas Stewart Sandager, a lighthouse keeper on the islands. The species survives only on the small unnamed island "Stack H", in a patch of vegetation the size of a living room, and is in extreme danger of extinction.
Geodorcus novaezealandiae is a large flightless species of stag beetle in the family Lucanidae. It is the type species and smallest member of the genus Geodorcus. It is endemic to New Zealand.
Geodorcus servandus is a large flightless species of stag beetle in the family Lucanidae. It was discovered by P.R. Kettle in December 1960 and this holotype specimen is held in the New Zealand Arthropod Collection. It was first described by Beverley Holloway in 2007. Its type location is Mount Tuhua summit, near Lake Kaniere on the West Coast of New Zealand. The name servandus is a Latin word meaning "[something] to be preserved, conserved, looked after".
Aegus chelifer, is a species of stag beetle found in Indo-Malaya regional countries.
