Abstract
LOCUST species exist in two phases differing in colour, anatomy and behaviour with intermediate forms between the two extremes1,2. The nymphs (hoppers) of the gregarious phase are black and orange in colour; they congregate and wander or march in bands. Hoppers of the solitary phase are green or brown; they live in isolation and do not march. In the laboratory, the two phases can be produced by crowding or isolating the individuals during rearing.
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References
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Kennedy, J. S., Truns. Roy. Ent. Soc., Lond., 89, 385 (1939).
Volkonsky, M., Arch. Inst. Pasteur Algerie, 20, 237 (1942).
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ELLIS, P. Marching in Locust Hoppers of the Solitary Phase. Nature 166, 151 (1950). https://doi.org/10.1038/166151b0
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DOI: https://doi.org/10.1038/166151b0
