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Cicadas returnThesemaps show the distribution ofbroods of
cicadas present In SouthCarolina, Georgia and neighbo ringsta tes ,
separated by their cycles ofemergence. Brood VI (6) IS
a17-year-cycle cicada population thatshould re-emerge next in
2017.Brood X (10) also isa17-yearcycle brood that shouldre-emerge
this year.Brood XIX(19) IS a13-year-cycle
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Cicadas among the world's From Page lB
The same 13-year brood thatexists in South Carolina also exis
tsin Kansas, and when it last emergedin 1998, the nature center got
a lot ofcalls, Mr. Me-son said."We had a couple neighborhoodswith a
lot of them and people wouldcomplain, 'It 's just deafening, wecan
't stand it,' " he said.In fac t, the sound-produc ingorgans,
called tymbals, make cicadasamong the loudest insects in theworld,
accordingto informatiun published by John Cooley of theUniversity
of Connecticut.Adult cicadas fly well and spend
mos tof their time in tree tops, so aftemerging they are not
that easyfmd . They live only two to six weekas adults, making that
stage of a 1y e a r c l e cicada less than one-tenof a percent of
the entire lifecycle.After ma ting, females lay theeggs in bark or
twigs and both sexedie. Nymphs that hatch burrounderground to fmd
tree roots to tainto. There are wing pads but nowings on their
backs, and their fronlegs are larger and more musculthan they will
be when they changinto adults, Mr. Mason said.. When the nymphs
sense ~ h etrme to emerge has come, theydiguout of the&oil and
crawl up the fIr
