There is no difference between cicadas and robins, robin is the common name for cicadas, because people think that the cicada's call is very similar to "robin... I'm not sure if you're a cicada or not. The cicada is commonly known as the "robin" because people think its call sounds like "know..., know...".

The male cicada abdomen has articulator, like a drum with a layer of tympanic membrane, the tympanic membrane is vibrated and sound, due to the song muscle can be stretched about 10,000 times per second, the cover and the tympanic membrane is empty, can play the role of the *** song, so its song is particularly loud, and can take turns to utilize a variety of different tones of the voice of the high song. And the female cicada's musical instrument structure is incomplete, can not sound.

Cicadas are the hemiptera Cicadidae a class of organisms collectively, alias know turtle, know monkey, know thumb acres, etc., because of the different dialects around the world, alias also have the corresponding changes, living in the world temperate to tropical regions, there are some species distributed in desert areas, the larvae live in the ground sucking the roots of the plants, the adults eat the sap of the plants.

The cicada's life passes through three stages: fertilized egg, larva and adult. In summer, fertilized eggs laid early in life hatch into larvae, which burrow into the soil and feed on the sap of plant roots. When the larva matures, it climbs to the ground, sheds its own golden exoskeleton, and feathers into the common winged adult. Although adult cicadas only survive for a few months, the larval stage can survive in the soil for many years; for example, the larval stage of the six-year-long cicada takes up five years of its life.