van Noort, Simon, and Jean-Yves Rasplus. 2005. “Revision of the Papua New Guinean Fig Wasp Genus Robertsia Boucek (Hymenoptera: Chalcidoidea: Pteromalidae: Sycoecinae)”. Zootaxa 929 (1). Auckland, New Zealand:1–35. https://doi.org/10.11646/zootaxa.929.1.1.