1 literature reference for Cyardium castelnaudii (Thomson, 1864):

Author: FABRICIUS Johann Christian
Year: 1793
Title: Entomologia systematica emendata et aucta. Secundum classes ordines, genera, species adjectis synonymis, locis, observationibus, descriptionibus
Source: Hafniae, C. G. Proft 1 (2): xx + 1-538.