Liu, C., Shih, C. and Ren, D. 2009. The earliest fossil record of the wasp subfamily Pelecininae (Hymenoptera: Proctotrupoidea: Pelecinidae) from the Yixian Formation of China. Zootaxa. 2080, 1 (Apr. 2009), 47–54. DOI:https://doi.org/10.11646/zootaxa.2080.1.4.