When are cicadas usually unearthed in Linyi?

From July to September, cicadas were unearthed. The original provenance can be collected naturally in the wild. Eggs, nymphs and adults can all be collected as provenances. Each insect state can be collected from July to September; August-September is the best season to collect nymphs, and September is the best time to collect cicada eggs and branches.

Cicada is an incomplete metamorphosis insect, and its growth and development go through three stages: egg, nymph and adult. In late July, female adults began to lay eggs after mating, usually on branches with a diameter of about 5 mm. When laying eggs, many oblique egg chambers with a depth of 0.5 ~ 1.0 cm were pricked on the branches with an ovipositor, and one egg chamber produced 6~8 fertilized eggs. After overwintering, eggs began to hatch in June, and nymphs sneaked into the soil after landing.

Nutrition is obtained by absorbing the juice of plant roots. Nymphs usually live in the soil for 3~5 years, or even longer, until the last larva drills out of the ground and climbs up nearby weeds, trees, etc. Finally, stay on the branches and leaves, bark, molt and feather into adults. Mating and spawning began 20 days after emergence, and the peak of spawning appeared from the end of June to the end of August, and gradually entered the end of spawning.