''Serrognathus taurus'' is a species of

beetle Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...

belonging to the family

Lucanidae Stag beetles are a family of about 1,200 species of beetles in the family Lucanidae, currently classified in four subfamilies.Smith, A.B.T. (2006). A review of the family-group names for the superfamily Scarabaeoidea (Coleoptera) with corrections ...

which was described by

Johan Christian Fabricius Johan Christian Fabricius (7 January 1745 – 3 March 1808) was a Danish zoologist, specialising in "Insecta", which at that time included all arthropods: insects, arachnids, crustaceans and others. He was a student of Carl Linnaeus, and is cons ...

in 1801.

Description

''Serrognathus taurus'' reaches a length of about in males and about in females. In males the head is large with large jaws. The head and the

pronotum The prothorax is the foremost of the three segments in the thorax of an insect, and bears the first pair of legs. Its principal sclerites (exoskeletal plates) are the pronotum (dorsal), the prosternum (ventral), and the propleuron (lateral) on ea ...

are dark brown, while

elytra An elytron (; ; , ) is a modified, hardened forewing of beetles (Coleoptera), though a few of the true bugs (Hemiptera) such as the family Schizopteridae are extremely similar; in true bugs, the forewings are called hemelytra (sometimes alterna ...

are clearer.

Distribution

''Serrognathus taurus'' can be found in Philippines, Indonesia and Malaysia.

Subspecies

The following subspecies are recognised: *''Serrognathus taurus cribriceps'' (Chevrolat, 1841) –

Luzón Luzón is a municipality of Spain located in the province of Guadalajara, autonomous communityy of Castile-La Mancha. According to the 2012 census of the INE, the municipality has a population of only 79 inhabitants, having undergone a severe pop ...

Negros Negros is the fourth largest and third most populous island in the Philippines, with a total land area of . Negros is one of the many islands of the Visayas, in the central part of the country. The predominant inhabitants of the island region a ...

Mindoro Mindoro is the seventh largest and eighth-most populous island in the Philippines. With a total land area of 10,571 km2 ( 4,082 sq.mi ) and has a population of 1,408,454 as of 2020 census. It is located off the southwestern coast of Luz ...

and

Mindanao Mindanao ( ) ( Jawi: مينداناو) is the second-largest island in the Philippines, after Luzon, and seventh-most populous island in the world. Located in the southern region of the archipelago, the island is part of an island group of ...

*''Serrognathus taurus gypaetus'' ( Laporte de Castelnau, 1840) –

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List ...

*''Serrognathus taurus jampeanus'' (Mizunuma in Mizunuma and Shinji Nagai, 1994) –

Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...

*''Serrognathus taurus minor'' (Okuda, 2013) *''Serrognathus taurus moinieri'' (Lacroix, 1983) *''Serrognathus taurus subtaurus'' Maes, 1992 *''Serrognathus taurus taurus'' ( Fabricius, 1801) –

Sumatra Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...

and

Malay Peninsula The Malay Peninsula (Malay: ''Semenanjung Tanah Melayu'') is a peninsula in Mainland Southeast Asia. The landmass runs approximately north–south, and at its terminus, it is the southernmost point of the Asian continental mainland. The area ...

References

Lucaninae Beetles of Asia Insects of Indonesia Beetles described in 1801 Taxa named by Johan Christian Fabricius {{Lucanidae-stub