File:Proceratium longmenense D holotype.jpg

Summary
Holotype worker.

[[Media:Staab, M., Hita Garcia, F. et al. 2018. Systematics of the ant genus Proceratium in China.pdf|Staab, M., Hita Garcia, F., Liu, C., Xu, Z.-H., Economo, E.P. 2018. Systematics of the ant genus Proceratium Roger (Hymenoptera, Formicidae, Proceratiinae) in China – with descriptions of three new species based on micro-CT enhanced next-generation-morphology. ZooKeys 770: 137–192 (doi: 10.3897/zookeys.770.24908).]]