The Influence of Temperature and Humidity on Embryonic Longevity in Aedes aegypti12

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Abstract
Eggs of Aedes aegypti (L.) were held at 100% RH for more than 8 months. The development of fungi, usually a serious problem at this humidity, was retarded by the use of chemically inert substrates. Bimonthly weight and hatchability determinations demonstrated that saturated atmospheres were very effective in reducing transpiration and extending longevity at certain temperatures. More than 92% of the eggs stored at 70°F remained viable for 6 months, and 90% viability was obtained throughout the entire 8-month period at 60°. In contrast, less than 60% of the eggs hatched after 6 months' exposure to temperatures of 50° and 80°. The storage of eggs at different temperatures for prolonged periods had no noticeable effect on the rate of larval growth from hatching to pupation.

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