Han, H. and Xue, D. 2008. A taxonomic review of Pachyodes GuenJe, 1858, with descriptions of two new species (Lepidoptera: Geometridae, Geometrinae). Zootaxa. 1759, 1 (Apr. 2008), 51–68. DOI:https://doi.org/10.11646/zootaxa.1759.1.3.