Lis, J. A. “Coxal Combs in the Cydnidae sensu Lato and Three Other Related ‘cydnoid’ Families – Parastrachiidae, Thaumastellidae, Thyreocoridae (Hemiptera: Heteroptera): Functional, Taxonomic, and Phylogenetic Significance”. Zootaxa, vol. 2476, no. 1, May 2010, pp. 53–64, doi:10.11646/zootaxa.2476.1.6.