Updated: September 7, 2025

Dog day cicadas emerge in the heat of summer and are best known for their loud seasonal songs. This article surveys where these cicadas nest and how their life cycle unfolds from the moment of egg laying to the final emergence of winged adults. It explains why the word nest is used in relation to cicadas and what the insect actually builds or creates during its life.

Overview of dog day cicadas and their life cycle

Dog day cicadas are a common sight in many warm regions. They belong to a large group of insects that include both annual and periodical cicadas. The life cycle of these cicadas combines a long subterranean period with a brief above ground life as adults.

In general terms the cycle begins when a female lays eggs in living tree tissue. After the eggs hatch the young nymphs fall to the ground and burrow into the soil. They feed on sap from plant roots for several months or several years depending on the species before they mature and emerge as winged adults.

Distinguishing dog day cicadas from periodical cicadas

The dog day cicadas are the regular annual cicadas that appear every summer in many areas. They differ from periodical cicadas in both timing and population density. Periodical cicadas emerge in large broods on a schedule of many years while dog day cicadas appear year after year.

Another key difference lies in the duration of the underground phase. Annual cicadas may spend a single year underground before reaching adulthood. In contrast periodical cicadas may remain underground for many years before a mass emergence occurs.

The songs of the two groups also differ. Male dog day cicadas produce loud calls to attract mates during the warm season. These songs help individuals locate partners in crowded forest patches and open areas.

Do dog day cicadas nest above ground or underground

Cicadas do not construct nest like structures such as tunnels or chambers in wood. They do not form a nest that is defended or used as a home base in the same way that some other insects do. The phrase nesting in cicadas refers to their reproductive strategy and the underground life stage that follows egg laying.

Female cicadas lay eggs in the shoots of living trees. The egg laying itself creates small slits in the branch tissue rather than a visible nest. Once the eggs hatch the nymphs fall to the ground or drop to the soil surface and begin their subterranean life.

The underground portion of the life cycle is how these insects persist through multiple seasons. The developing nymphs use roots as their food source and remain unseen beneath the soil for extended periods. This below ground phase is the primary habitat for most of the cicadas life.

The egg laying process and the creation of what is commonly called a nest

Nesting and egg laying in living trees is a specialized activity performed by female cicadas. The term nest in this context is used colloquially to describe the set of eggs laid and the small slits that accommodate them rather than a constructed shelter. The following details summarize the main points of this process.

Nesting and egg laying in living trees

  • Female cicadas insert eggs into small slits in living branches using their specialized ovipositor

  • Each female may lay dozens to hundreds of eggs over several days

  • The eggs hatch after about two to six weeks depending on temperature and species

  • Emerging nymphs drop to the ground and burrow into the soil to begin the subterranean stage

The underground phase and the habitat it creates

The underground phase forms the core of the cicadas life cycle. Nymphs spend the majority of their time beneath the surface, safe from many above ground hazards. They feed by tapping sap from plant roots and grow slowly as they molt through several instars.

In this subterranean habitat the nymphs rely on root systems to obtain nourishment. Soil moisture and temperature influence their development rate. The underground period can vary from one year to several years, and in some cases may extend longer in cooler climates or for certain species.

When the time is right the nymphs approach the surface and prepare for the transition to winged adults. This process requires specialized movements to push through the soil and expose themselves to the air. Once they exit the soil they immediately molt into adults and begin a brief aerial phase.

Emergence and maturation into adults

Emergence as an adult cicada marks a dramatic change in appearance and behavior. The nymphs climb onto nearby vegetation and molt once more to reveal their wings. After the wings dry and stiffen the new adults take up singing and mating duties.

The adult life stage is relatively short compared to the underground period. During this time the cicadas focus on reproduction. Males begin to sing to attract females, and females respond by selecting suitable trees to receive eggs.

The chorus of cicadas can fill a forest or a suburb with a powerful sound. The intensity of the call depends on the temperature and the proximity of receptive mates. This chorus is a natural signal that the life cycle has advanced to a new generation.

Ecological roles and predator dynamics

Cicadas perform important ecological roles in many ecosystems. Their mass emergences provide a surge of available prey for birds, mammals, and other predators. This abundance can help predator populations endure periods of scarcity and may influence the timing of breeding for several predator species.

After they die, cicadas contribute nutrients to the soil and to the leaf litter. Their bodies enrich the food web and support a diverse community of scavengers. The life cycle of cicadas thus intersects with forest health and the dynamics of local ecosystems.

In many landscapes cicadas also help prune vegetation indirectly by promoting growth in certain tree species. The feeding activity of the nymphs on root systems stimulates new root development in some plants. These ecological interactions demonstrate the complexity of cicada communities.

Common myths and misconceptions

A common belief is that cicadas harm trees by laying eggs in branches. In reality egg slits caused by cicadas remove only a small amount of tissue from healthy trees. Most trees recover quickly from the minor damage caused by the egg laying.

Another frequent misconception is that cicadas emerge only in odd numbered years. The truth is that dog day cicadas tend to emerge annually in many regions. The occasional mass emergences seen in some years are not a universal pattern for all species.

People often mistake cicadas for locusts. These insects are not related to true locusts and their feeding strategies differ. Cicadas do not swarm in the way locusts do and their feeding patterns do not threaten broad areas of crops.

How to observe cicadas safely

Observing cicadas can be an enjoyable and informative experience when done with care. It is important to avoid disturbing the nesting and feeding activities of the insects. Keeping a respectful distance and moving slowly helps minimize stress on the population.

If you wish to see the emergence, look for quiet, tree covered areas in late spring or early summer. Listen for the unmistakable chorus that rises with the heat of the day. When observing, wear light clothing and avoid grabbing branches or attempting to collect specimens.

If you are curious about the life cycle, take notes on the timing of egg laying and the emergence of nymphs. You can also enjoy watching the adults as they perch on stems and leaves and listen to their songs. Remember that cicadas do not survive long as adults and the best observations occur during their short life stage.

Conclusion

Dog day cicadas offer a vivid example of how insect life cycles adapt to seasonal warming and climate variation. These cicadas do not build nests in the traditional sense, but they create a reproductive strategy that relies on egg slits in living branches and an extensive underground phase. Understanding their life cycle clarifies why cicadas appear in large numbers in summer and why their presence is a meaningful part of local ecosystems. Observing them with care allows many people to appreciate the complexity and beauty of this ancient insect group.

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