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''Dactylotum bicolor'', also known as the rainbow grasshopper, painted grasshopper, or the barber pole grasshopper, is a species of grasshopper in the family Acrididae. It is native to North America and northern Mexico and is aposematically colored. It was first described by the German entomologist Toussaint de Charpentier in 1843. ==Description== ''Dactylotum bicolor'' grows to an average length of about for males and for females. It is mainly black with distinctive reddish and yellowish markings, a pale green prothorax and pale green wingpads. The tibia of the hind leg bears six to eight spines. This species does not develop wings and is unable to fly.〔 Three subspecies are recognised:〔(【引用サイトリンク】title=''Dactylotum bicolor'' )〕 * ''D. b. bicolor'' – Northern Texas, New Mexico and Mexico * ''D. b. pictum'' – Northern and eastern part of range * ''D. b. variegatum'' – Southern Arizona and western part of range The coloring varies across the insect's range, with ''D. b. pictum'' being black with little red, ''D. b. variegatum'' having distinct red markings, and ''D. b. bicolor'' having a purplish or violet sheen to the background black color. Before the discovery of ''Dichroplus silveiraguidoi'' in Uruguay in 1956, ''Dactylotum bicolor'' had the lowest known number of chromosomes among grasshopper species, with seventeen acrocentric chromosomes. 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「Dactylotum bicolor」の詳細全文を読む スポンサード リンク
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