BioStor
 | Notes on Cerocephalini, with descriptions of new genera and species (Hym., Chalcidoidea, Pteromalidae) K J Hedqvist (1969) Proceedings of the Entomological Society of Washington 71: 449-467 |
 | The new world genus Cycloneda Crotch (Coleoptera: Coccinellidae: Coccinellini): Historical review, new diagnosis, new generic and specific synonyms, and an improved key to North American species Natalia J Vandenberg (2002) Proceedings of the Entomological Society of Washington 104: 221-236 |