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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Sphagniana sphagnorum ： ウィキペディア英語版 Sphagniana sphagnorum The bog katydid (''Sphagniana sphagnorum'') (also called ''Metrioptera sphagnorum'') is the only species in the family Tettigoniidae (Order Orthoptera) endemic to Canada. It frequents black-spruce sphagnum bogs across the Canadian northwest from Ontario to the Yukon. The two-part song of the males is remarkable among acoustic insects for alternating between two sound spectra: high audio sound frequencies are changed for ultrasonic frequencies every quarter second (Morris 1970). The forewings rub to and fro, drawing a scraper on one forewing along a row of teeth (file) on the other forewing and sending thin glassy wing cells into oscillation to radiate sound; two different regions of this file are used for the two spectra (Morris & Pipher 1972). ==References== *Morris G.K. 1970. Sound analyses of ''Metrioptera sphagnorum'' (Orthoptera: Tettigoniidae). Canadian Entomologist 102: 363-368. *Morris G.K., Pipher R.E. 1972. The relation of song structure to tegminal movement in Metrioptera sphagnorum (Orthoptera: Tettigoniidae). Canadian Entomologist 104: 977-985. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sphagniana sphagnorum」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.