Why is the newly hatched gourd bee pupa yellow?

Our environment is full of oxygen, and many substances in oxygen will be oxidized. Beeswax has a complex composition, and it is usually white when bees first secrete it. However, with the extension of time, the beeswax is exposed to the air, and the bees will keep the bees warm, which will lead to the oxidation of some components in the beeswax, and the nest spleen will turn from white to yellow, so the pupa will turn yellow.

Gourd bee is the common name of several large wasps, named after its hive is like a hanging gourd.

Gourd bees have very high requirements for nesting environment, and the hive location should be warm in winter and cool in summer, which is conducive to ventilation. Food resources require abundant and accessible food nearby, and the surrounding environment should be as quiet as possible, with less human and animal interference. In addition, gourd bees will not build nests when the temperature is too low, so measures should be taken to keep the gourd bees warm and cold in the low temperature season.