Yamane, S., H. O. Tanaka, and T. Itioka. “Rediscovery of Crematogaster subgenus Colobocrema (Hymenoptera, Formicidae) in Southeast Asia”. Zootaxa, vol. 2999, no. 1, Aug. 2011, pp. 63–68, doi:10.11646/zootaxa.2999.1.6.