Olenecamptus bilobus  (Fabricius, 1801)
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Class: Insecta
Order: Coleoptera
Superfamily: Chrysomeloidea
Family: ​Cerambycidae
Subfamily: Lamiinae
Tribe: Dorcaschematini
Genus: Olenecamptus
Species: bilobus

  • Common names: 
  • Distribution: Andaman, Australia, Bhutan, Bismarck, Borneo, Comoros (Anjouan, Mayotte),E India (West Bengal), Japan, Java, Laos, Lesser Sunda Is., Madagascar, Malayan Peninsula, Micronesia, Moluccas, (Ambon, Bacan, Buru, Halmaheira, Sula, Ternate), Myanmar, N India, NE India (Assam, Sikkim), Nepal, New Guinea Is. (East New Guinea), North China (Hebei, Liaoning), Pakistan, Philippines (Basilan, Luzon, Mindanao, Palawan, Samar), Ryukyu, Seychelles, South China (Anhui, Fujian, Guangdong, Guangxi, Hainan, Hongkong, Sichuan, Yunnan, Zhejiang), Sri Lanka, Sulawesi, Sumatra Is., Taiwan, Thailand, Timor, Vanuatu, Vietnam
  • Image locations: Surat Thani (Koh Samui)
  • Hosts: 
  • Additional notes: Francesco Vitali in reponce to a question regarding subpecies Olenecamptus bilobus laosus (Dillon & Dillon 2004)
​Difficult to say. This species (and other congeners) was studied by Dillon & Dillon (1948) who described as subspecies a lot of forms. 
Further investigations on several of the groups studied by these American entomologists has revealed a lot of coarse errors, misidentifications, wrong valuations, etc., so that nearly all Dillon's taxa have been invalidated. I do not know the taxonomic situation concerning Olenecamptus bilobus but
- by studying my materials from different localities (Indonesia, New Guinea, Japan) I have seen that the correspondence region/subspecies is very doubtful 
- the book of Chinese Longhorn provides pictures of Chinese specimens belonging to subspecies from Taiwan, Vietnam, Philippines, New Guinea, etc.
- the site Lamiaires du Monde considers all these form as synonyms.
- Last but not least, the typical form came from "Oriental islands", actually an unknown land.
Waiting for more serious investigations, I propose to leave this form as "Olenecamptus bilobus".
Olenecamptus bilobus location map.jpg
Image locations
Images of Olenecamptus bilobus from Thailand.
Olenecamptus bilobus, Koh Samui, Surat Thani, November 2010.jpg
Olenecamptus bilobus Koh Samui Surat Thani November 2010
References: 
Cerambycoidea Forum
Lamiaires du Monde