''Eupatorus gracilicornis'', the five-horned rhinoceros beetle ( th, ด้วงกว่างซางเหนือ (DâwŋGwā̀ŋŞāŋĦeNǖx)) is a

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 ...

that has four large horns on the

prothorax 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) o ...

and one extra-long cephalic horn. Rhinoceros beetles, the

Dynastinae Dynastinae or rhinoceros beetles are a subfamily of the scarab beetle family (Scarabaeidae). Other common names – some for particular groups of rhinoceros beetles – include Hercules beetles, unicorn beetles or horn beetles. Over 1 ...

, are a subfamily of the scarab beetle family (Scarabaeidae). The five-horned rhinoceros beetle has been found in China,

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John Wells explai ...

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ...

, Laos and

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...

. Its coloring is shiny jet-black, while the

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 ...

or fore wings are colored yellow or gold. The body is covered by a thick exoskeleton and a pair of thick wing covers lay atop another set of membranous wings underneath, allowing the beetle to fly, although not very efficiently, owing to its large size. The flying season is usually in September, when most of the males usually appear to wait for copulation. Its length is 50–95 mm. As a larva, its diet is rotten wood. Its adult diet consists of nectar, plant sap and fruit. It was first described by the

British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, ...

entomologist

Gilbert John Arrow Gilbert John Arrow (20 December 1873 London- 5 October 1948) was an English entomologist. Gilbert was the son of John Garner Arrow of Streatham, London. He initially trained as an architect but took an interest in insects from 1896 during which ...

in 1908. File:Five horned rhino beetle.jpg, Five horned rhino beetle was found in the wilderness north of Liuzhou, Guangxi, China File:5 horned rhino beetle.jpg, This was found in the wilderness north of Liuzhou, Guangxi, China

References

External links

* Beetles described in 1908 Dynastinae Insects of Thailand Insects of Vietnam {{Dynastinae-stub