Cicada Guide: Everything You Need Know

Cicadas are one of the most fascinating and unique insects in the world, with a life cycle that spans several years and a distinctive sound that can be heard for miles. These insects have been a part of human culture for centuries, with references to them found in ancient literature, art, and music. In this comprehensive guide, we will delve into the world of cicadas, exploring their biology, behavior, and ecology, as well as their cultural significance and the impact they have on our environment.
Introduction to Cicadas

Cicadas are members of the family Cicadidae, which comprises over 3,000 species found in tropical, subtropical, and temperate regions around the globe. These insects are known for their large size, with some species reaching lengths of up to 7 centimeters (2.8 inches) and weighing up to 30 grams (1.1 ounces). Cicadas have a distinctive appearance, with a sturdy body, long wings, and a prominent pair of compound eyes. They are also recognized by their unique sound, which is produced by males using specialized organs called tymbals.
Cicada Life Cycle
The life cycle of a cicada is complex and involves several stages. The female cicada lays her eggs in a slit she cuts into a tree branch, and the eggs hatch into nymphs after several weeks. The nymphs then fall to the ground and burrow into the soil, where they feed on roots and underground plant material. This stage can last from several months to several years, depending on the species. When the nymphs are fully grown, they emerge from the soil and undergo a process called ecdysis, in which they shed their skin and transform into adult cicadas. The adults then mate, and the females lay their eggs, starting the cycle again.
Stage | Description | Duration |
---|---|---|
Egg | Laid in tree branches by female cicadas | Several weeks |
Nymph | Feeds on roots and underground plant material | Several months to several years |
Adult | Mates and lays eggs | Several weeks to several months |

Cicada Behavior and Ecology

Cicadas are social insects that live in large groups, often with millions of individuals. They are found in a wide range of habitats, from forests to grasslands, and are known for their ability to adapt to different environments. Cicadas are herbivores, feeding on plant sap and other vegetation, and play an important role in ecosystem nutrient cycling. They are also an important food source for many animals, including birds, bats, and spiders.
Cicada Sounds and Communication
Cicadas are famous for their distinctive sound, which is produced by males using their tymbals. This sound is used for communication and mating, and can be heard for miles. Each species of cicada has its own unique sound, which is used to attract females and deter rival males. Cicadas also use visual cues, such as color and movement, to communicate with each other.
Cicada sounds can be classified into several categories, including:
- Calling songs: used by males to attract females
- -courtship songs: used by males to attract females and deter rival males
- alarm calls: used by females to alert other cicadas to predators
Cultural Significance of Cicadas
Cicadas have been a part of human culture for centuries, with references to them found in ancient literature, art, and music. In some cultures, cicadas are considered a delicacy and are eaten fried or boiled. In other cultures, they are seen as a symbol of good luck or prosperity. Cicadas have also been used in traditional medicine for centuries, and are still used today in some parts of the world.
Cicadas in Art and Literature
Cicadas have been a source of inspiration for artists and writers for centuries. They are often depicted in art and literature as a symbol of transformation and renewal, due to their unique life cycle. In ancient Greek literature, cicadas were seen as a symbol of immortality, while in Chinese culture, they are considered a symbol of good luck and prosperity.
What is the lifespan of a cicada?
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The lifespan of a cicada varies depending on the species, but most adult cicadas live for several weeks to several months. Some species, such as the periodical cicadas, can live for up to 17 years in their underground nymph stage.
What do cicadas eat?
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Cicadas are herbivores and feed on plant sap and other vegetation. They use their long, slender mouthparts to pierce plant tissue and extract nutrients.
Why do cicadas make so much noise?
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Cicadas make noise as a form of communication and mating. Males use their tymbals to produce a distinctive sound that attracts females and deters rival males. The sound is also used to alert other cicadas to predators and other potential threats.