Image acquired with permission from the London Natural History Museum.Type specimen. Specimen collected by Wallace. Specimen locality: Singapore. Label transcription: [Singapore] [Baly Coll.] [SYNTYPE Arcastes biplagiata Baly] [Paralectotypus Arcastes biplagiata Baly, 1865 Hazmi & Wagner desig. 2010] [NHMUK010601812]