Primary type information: Primary type material: syntype major worker(s), syntype minor worker(s) (numbers not stated). Primary type locality: Malaysia: Borneo, Sarawak (A.R. Wallace). Primary type depository: unknown (presumed lost, not in BMNH or OXUM).
- 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