Primary type information: Primary type material: 8 syntype workers. Primary type locality: Singapore: (no further data) (A.R. Wallace). Primary type depositories: BMNH, OXUM. Primary type specimen: CASENT0903062.
- Smith, F. 1857a. Catalogue of the hymenopterous insects collected at Sarawak, Borneo; Mount Ophir, Malacca; and at Singapore, by A. R. Wallace. [part]. Journal and Proceedings of the Linnean Society of London. Zoology 2:42-88. PDF