We can follow the dichotomous key this way:
1. b. Does not have a backbone
(insects have exosqueletons)
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2. b. Does not change from caterpillar to adult form.
(The juvenile forms of grasshoppers, locust, and crickets are nymphs that resemble the adults but they don't have wings and may have different colors)
The organism is Locusta migratoria (migratory locust)