 Nabokov designated "C. ammon" (Lucas's blue, from Cuba) as the type species for the genus, and included "C. dominica" (Jamaican blue, from Jamaica), "C. thomasi" (Thomas's blue, from Florida, the Bahamas, Puerto Rico and Hispaniola), "C. woodruffi" (from the Virgin Islands) and "C. erembis" (from the Cayman Islands, synonym of "C. ammon erembis").In 1992 K. Johnston and Matusik described "C. sorpresus" and "C. kathleena", both from Hispaniola.The critically endangered Miami blue ("C. thomasi bethunebakeri") is a member of the genus.