Two Colour-Types in Solitario-Phase Adults and Hoppers of the Desert Locust

@article{Roonwal1945TwoCI,
  title={Two Colour-Types in Solitario-Phase Adults and Hoppers of the Desert Locust},
  author={M. L. Roonwal},
  journal={Nature},
  year={1945},
  volume={155},
  pages={792-792}
}
COLOUR differences between the gregaria and solitaria phases in the desert locust, Schistocerca gregaria (Forskål), are well known. In the gregaria phase the adults are pink when immature and yellowish when mature (Künckel d'Herculais1); solitaria adults are greenish when very young and greyish afterwards (Johnston2). Gregaria-phase hoppers have a black pattern; solitaria hoppers lack this pattern and are green (Johnston2, and others). (Vide also Kennedy's3 recent account of coloration in… 
2 Citations
ON A NEW EVOLUTIONARY PHENOMENON : THE SHARP INCREASE OF INTRASPECIFIC VARIATION IN MINIMUM POPULATIONS , AS EVIDENCED BY THE DESERT LOCUST .
TLDR
This chapter discusses the evolution of various types in Desert Locust and discusses a new Evolutionary Phenomenon or Effect called "Effect of U Effects".