Liu, Chenxi, Chungkun Shih, and Dong Ren. 2009. “The Earliest Fossil Record of the Wasp Subfamily Pelecininae (Hymenoptera: Proctotrupoidea: Pelecinidae) from the Yixian Formation of China”. Zootaxa 2080 (1). Auckland, New Zealand:47–54. https://doi.org/10.11646/zootaxa.2080.1.4.