Arethaea constricta, known generally as the prairie thread-leg katydid or constricted thread-leg katydid, is a species of phaneropterine katydid in the family Tettigoniidae. It is found in North America.

Subspecies These two subspecies belong to the species Arethaea constricta: Arethaea constricta comanche Hebard, 1936 Arethaea constricta constricta Brunner von Wattenwyl, 1878

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