Ma, Y.-C., Peng, Y.-Q. and Yang, D.-R. 2013.

Description of two new species of Walkerella (Pteromalidae, Otitesellinae) from China with a key to species of the genus

. Zootaxa. 3702, 5 (Aug. 2013), 473–482. DOI:https://doi.org/10.11646/zootaxa.3702.5.6.