BROOD XIV EMERGENCE MAP
The early emerging cicadas are overlapping with the historical range of Brood II, which is shown above. These early emerging cicadas have provided clues that the aberrant records of the non-existent Brood XV may have been accelerated Brood II cicadas.
Three species may be emerging this May. They include from left to right, Magicicada septendecim, Magicicada cassini, and Magicicada septendecula. In addition to looking different from the underside, the three species have different mating calls.
The 2009 Cicada Calendar
Late April to early May
After strong soaking rains, cicada nymphs may build little chimneys of mud to escape the high water.
Mid- to late May
As the ground temperatures increase, the cicadas wait for a nice rainy day to soften the soil. If ground temperatures are 64º F, then cicadas will emerge.
Late May to early June
Cicada numbers will continue to increase and the loud singing will spread through the trees.
Early June to mid-June
Female cicadas are laying eggs in the new growth of trees.
Mid-June to late June
The cicada die-off is happening as the adults reach the end of their life expectancy.
Late June through July
The leaves on the branches where eggs were laid will start to turn brown and many will snap in strong winds and hang from the tree. This is called flagging. The areas with large numbers of dead cicadas will have a peculiar odor.
Early August
The cicada eggs start to hatch and the tiny cicada nymphs fall to the ground to burrow into the soil, where they will live for the next 17 years.
Brood II
