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Magicicada neotredecim
''Magicicada neotredecim'' is the most recently discovered species of periodical cicada. Like all ''Magicicada'' species, ''M. neotredecim'' has reddish eyes and wing veins and a black dorsal thorax. It has a 13-year life cycle but seems to be most closely related to the 17-year species ''Magicicada septendecim''. Both species are distinguished by broad orange stripes on the abdomen and a unique high-pitched song said to resemble someone calling "weeeee-whoa" or "Pharaoh." They differ only in life cycle length.〔(【引用サイトリンク】url=http://insects.ummz.lsa.umich.edu/fauna/Michigan_Cicadas/Periodical/ )〕
Another closely related 13-year species ''Magicicada tredecim'' differs very slightly from ''M. neotredecim'', and for many years the two were considered one species with slight differences in abdomen color and mitochondrial DNA. Then in 1998, scientists studying the calls of Brood XIX distinguished two different peak frequencies in the -decim species call.〔〔(【引用サイトリンク】url=http://www.magicicada.org/about/species_pages/m_ndecim.php )〕 Because of their many similarities, ''M. neotredecim'', ''M. tredecim'', and ''M. septendecim'' are often described together as "decim periodical cicadas."
==Broods and distribution==
Periodical cicadas are assigned to broods based on their year of emergence and life-cycle length. The other three 13-year species (''M. tredecim'', ''M. tredecassini'', and ''M. tredecula'') are represented in all three of the extant 13-year broods: Brood XIX (emerging in 2011), Brood XXII (emerging in 2014), and Brood XXIII (emerging in 2015). ''M. neotredecim'' was first discovered in 1998 in Brood XIX, where it occurs toward the northern part of the range, showing a narrow range of overlap with the more southern species ''M. tredecim''. It has also been observed in Brood XXIII but not in Brood XXII.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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