Hoppensteadt and Keller  presented a model for the 17-year cicada (magicicada
) which included both predation and intraspecific competition and in  cicada dynamics is further explored.
Influence of soil chemistry on metal and bioessential element concentrations in nymphal and adult periodical cicadas (Magicicada
When insect species disappear, the magical mystery Magicicada
musical will be silenced, and the trees, turtles, fish and birds will suffer as they lose that periodic extravagance of fertilizer and feed.
In general, the nymphal period of development is semivoltine (LOGAN, 2006) occurring to the extreme to last seventeen years on Magicicada
species (KARBAN, 1997).
In the introduction to his beautiful study of periodical cicadas (Magicicada
spp.), Marshall (2000) wrote that "the brilliant may occasionally manage to anticipate significant discoveries while wading through the confusion of published information, to guess correctly when and where to look and what to measure, but for the rest of us the best investment is simply time spent in the field testing the best questions we have at the moment, watching and listening to the organisms, and waiting for the surprises." It was in this spirit that I started studying the treehopper Ennya chrysura (Fairmaire, 1846; Membracidae, Smiliinae, Polyglyptini) and the surprises have been many.
Cicadas belong to the genus "Magicicada
" and there are seven species in this genus.
From the Periodic Cicada <http:// magicicada
.org/> project, which tracks the emergence of 13- and 17-year cicadas, to the Backyard Bark Beetles <http://www.backyardbarkbeetles.
Antennal sensilla of Magicicada
cassini (Fisher) (Homoptera: Cicadidae): fine structure and electrophysiological evidence for olfaction.
Ehrhardt, "Allochronic speciation, secondary contact, and reproductive character displacement in periodical cicadas (Hemiptera: Magicicada
spp.): genetic, morphological, and behavioural evidence," Molecular Ecology, vol.
Synchronized generations of three Magicicada
species designated as Brood II reliably emerge every 17 years in a swath of the U.S.
This type of periodic or "magicicada
" is part of a brood first documented in the east in 1979 and mapped every 17 years since.