Image acquired with permission from the Natural History Museum at Tring, United Kingdom. Specimen collected by A. R. Wallace. Specimen locality: Sumatra Label transcription: [Collected by A.R. Wallace. 1861 Zanclostomus javanicus. Horsf. ♀. Sumatra. 78.] [22.214.171.1249. ♀. Sumatra (Wallace). Tw. C.]
NOTE: Species known to occur in Singapore. Imaged Wallace Specimen from Sumatra.