Brood XIV is the second largest periodical cicada brood after Brood XIX; since it is larger than Brood X, it is in effect the “Great(er) Eastern Brood.” Broods XIV and XIX share a boundary in many areas and will co-emerge in 2076.
Brood XIV populations bordering Brood X may sometimes be mistaken for populations of Brood XIV because the broods share boundaries, are offset by four years, and four-year early or late stragglers from either brood could easily be attributed to the wrong brood (see Lloyd and White 1976). Brood XIV exists in four distinct patches: 1) A large, central patch extending from northeast Georgia to southern Ohio; 2) A smaller patch in central Pennsylvania; 3) Populations on Long Island; and 4) Populations on Cape Cod. In Ohio, populations of Broods VI, X, and XIV are closely associated, and local populations may be switching from one brood schedule to another (see Kritsky 1992, Kritsky and Young 1992, Kritsky et al. 2009). Both Long Island and Cape Cod populations are unusual for their occurrence on sandy soil. This brood includes the species Magicicada cassini, Magicicada septendecim, and Magicicada septendecula although disjunct populations do not include all species.
In the map below, cicada symbols are verified presence records and red crosses are verified absence records in our database as of January 2024. Click on points for details. Gold symbols are from Simon (1988); smaller symbols are records with a lower degree of certainty and black crosses represent records that are considered spurious. Blue symbols are from Marlatt (1923); smaller symbols are records with a lower degree of certainty and question marks represent records that are considered spurious. Symbols are in layered in the order Database, Simon, Marlatt, and symbols in the upper layers may obscure symbols in lower layers. Some absence records in the database are not shown for clarity. Note that the dates shown do not represent dates of adult emergence; rather, they represent dates on which choruses were active. Thus, in any given area, adult emergence may have occurred a week or more earlier than the dates shown on this map. This map may not be reproduced without written permission.