H.  Britten, ?Choleva angustata F. and its allies: supplementary note?, EMmg, vol. 58, pp. 107-108., 1922.

R.  Jeannel, ?Sur les Choleva des îles Britanniques?, BSef, vol. 27, pp. 49-50., 1922.

R.  Jeannel, ?Deux Choleva nouveaux de France (Col. Silphidae)?, BSef, vol. 27, pp. 24-27., 1922.