Fanti, Fabrizio, and Roberta Improta. 2016. “[Synonymical Note: Rhagonycha Angulatocollis A. Costa, 1858 = Rhagonycha Nigriceps (Waltl, 1838) (Coleoptera, Cantharidae)]”. Natural History Sciences 3 (1):60-62. https://doi.org/10.4081/nhs.2016.283.