Journal of Morphology · 1932 · 90 citations · 6 references
Life SciencesBiologyEntomologyEmbryologyInsect Developmental BiologyInsect MorphologyDevelopmental Temperature EffectsLarval MorphologyHibernation PhysiologyInsect External MorphologyLarval External MorphologySeasonal HibernationTemperature Effects On EggsTemperature Effects On EmbryogenesisTemperature Effects On OvipositionTemperature-dependent Larval Development
Abstract Eggs of Melanoplus differentialis, a grasshopper, secured immediately after they had been laid, were placed in a water bath kept at 25°C, and allowed to develop for definite periods. After fixation, the embryos were dissected out of the eggs and drawn. Large numbers of eggs were examined in order to determine the degree of variation under specific conditions. For the stages following revolution, eggs were used in which ‘hibernation’ had been prevented by exposure to low temperatures.
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