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 the United States, Canada and northern Mexico and exhibits aposematism (warning coloration). It was first described by the German entomologist Toussaint de Charpentier in 1843.

Dactylotum bicolor grows to an average length of about 20 mm (0.8 in) for males and 35 mm (1.4 in) for females. It is mainly black with distinctive reddish and yellowish markings, a pale green prothorax and pale green wingpads. This species does not develop wings and is unable to fly.

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