Andersson, B., & J. Ferrer, 1989. Cynaeus angustatus [sic] funnen I Sverige. Entomologisk Tidskrift, 110 (3): 116-117.
LeConte, J. L., 1851. Description of new species of Coleoptera from California. Annals of the Lyceum of Natural History, New York, 5: 125-216.
LeConte, J. L., 1862. Classification of the Coleoptera of North America. Part 1. Prepared for the Smithsonian Institution. Smithsonian Miscellaneous Collections, 3: 209-286.