Image acquired with permission from the Oxford University Museum of Natural History, United Kingdom.
Specimen collected by Wallace. Specimen locality: Singapore
Label transcription: [TYPE HYM: 994 Pheidole silenus SMITH HOPE DEPT.OXFORD] [Pheidologeton silenus (F. Smith) det. B.Bolton. 1978] [SYN-TYPE] [atta Silenus. Smith] [SINC] [Coll Smith 1879]