text: The LUBILOSA program sought to control these organisms with an isolate from Metarhizium funguscalled "Green Muscle."
full_question: The LUBILOSA program sought to control these organisms with an isolate from Metarhizium funguscalled "Green Muscle." A characteristic behavior of these animals results from a phase polymorphism in which serotonin accumulates in their brains, causing gregariousness. These animals return to Umuofia for the first time in many years in Things Fall Apart, allowing villagers to (*) catch them and roast them in clay pots. In a novel partly named for this arthropod, Tod Hackett falls in love with the starlet Faye Greener; that novel by Nathanael West is set in Hollywood. In the film Days of Heaven, these insects destroy the farmer's wheat field. For 10 points, name these insects, a phase of many short-horned grasshoppers, that form swarms.
first_sentence: The LUBILOSA program sought to control these organisms with an isolate from Metarhizium funguscalled "Green Muscle."
raw_answer:  locusts [prompt on grasshoppers or Caelifera; prompt on Acrididae] 