Flying termites or termite swarmers/alates swarm during the right climatic conditions, such as after a rainy spell following a dry season. But they don’t just appear, the termite colony has to produce this special caste, which it does from time to time (some more frequent than others). During certain periods, some nymphs will develop into reproductive males and females with wings; once they develop and mature, these alates will then fly from the nest at the right time.
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