Factors affecting the rate of ingestion of liquids by the locust, Chortoicetes terminifera

Neither the overall rate of intake of liquids by adults of Chortoicetes terminifera, calculated over the course of a whole meal, nor the rate of consumption during the first half of meals was dependent upon the stimulating power of the liquid, water being taken at the same rate as a veriety of more powerfully stimulating sucrose solutions. Rates of intake tended to decrease towards the end of meals, the greatest decreases occurring when the locusts consumed large volumes of liquid. When locusts were given alternate drops of water and 1·0 M sucrose, the rates of consumption of the two kinds of drops were similar for most of the meal, but towards the end of the meal drops of sucrose solution were consumed more rapidly than those of water.