Crickets do not build nests in the way birds or social insects do. There is no shared structure, no collected material woven into a cradle for eggs. What many cricket species do instead is dig or occupy burrows in soil, hide under debris, or simply insert their eggs directly into the ground with a needle-like organ called an ovipositor. The living arrangements and egg-laying habits vary dramatically across the roughly 2,400 known cricket species, from the elaborate underground tunnel systems of mole crickets to the casual leaf-litter squatting of forest-floor species.
How Field Crickets Use Burrows
The common field cricket is a good starting point because it is the cricket most people encounter and hear. Field crickets dig shallow burrows in soil or take up residence in existing cracks, gaps under rocks, or patches of dense vegetation. These burrows serve as shelter from predators and weather, as calling stations for males trying to attract mates, and as a general home base. Research on the Australian field cricket found that most behavior in the wild was centered around burrows or sheltered sites, and that burrows appeared to be a limiting resource, meaning there were not always enough to go around.1Zeitschrift für Tierpsychologie. A Study of the Behaviour of the Australian Field Cricket Teleogryllus commodus (Walker) (Orthoptera: Gryllidae) in the Field and in Habitat Simulations
Male field crickets are typically the ones defending burrows, and they use them as singing platforms to broadcast their chirps. But they do not stay put for long. In the same study, adult males never remained at a single burrow for more than two days. They moved on either because another male evicted them or because no females showed up. When researchers increased cricket density in simulated habitats, the animals clustered around calling sites rather than spreading out evenly. This paints a picture less like a fixed home and more like a series of temporary campsites, each one occupied only as long as it is useful.
The burrow itself is simple. A field cricket digs a short, roughly vertical shaft a few centimeters deep, just enough to retreat into when threatened. Females dig too, but their primary relationship with the soil is about egg-laying rather than residence. In many species, females wander between male territories, mate, and then move off to find suitable ground for depositing eggs.
Mole Crickets and Their Tunnel Networks
If any cricket comes close to having a true “nest,” it is the mole cricket. These stocky, powerful insects spend most of their lives underground and have evolved front legs that look and function remarkably like tiny shovels. Their morphological adaptations for digging are extreme, and researchers have noted that their cryptic, subterranean lifestyle has made them difficult to study.2Journal of Bionic Engineering. Multiple Locomotion Gaits in the Mole Cricket
Unlike field crickets that dig a quick retreat hole, mole crickets excavate extensive branching tunnel systems. Analysis of burrow structures in the oriental mole cricket revealed that vertical burrows were occupied by only a single individual, suggesting these tunnels are private residences rather than communal spaces.3Journal of Zoology. The underground life of the oriental mole cricket: an analysis of burrow morphology Some mole cricket species also construct a specialized horn-shaped chamber near the soil surface that amplifies their mating call, broadcasting it across surprisingly long distances. The female enters the tunnel system to mate, and eggs are deposited in a dedicated chamber within the burrow.
For homeowners and groundskeepers, mole crickets are the species most likely to cause visible damage. Their tunneling loosens soil and severs grass roots, leaving irregular brown patches on lawns. The tunnels themselves can extend more than a foot below the surface, and because the insects are nocturnal and rarely come above ground, people often see the damage long before they see the culprit.
Species That Skip the Burrow Entirely
Not all crickets dig. Tree crickets lay their eggs inside plant stems rather than in soil. The female chews a small hole in a twig or herbaceous stem and deposits eggs in a neat row inside the plant tissue, where they overwinter protected from the elements. This means the “nest,” if you want to call it that, is the plant itself. Gardeners occasionally discover rows of tiny punctures on raspberry canes or fruit tree branches and wonder what made them; tree crickets are a common answer.
House crickets, the species most often sold as feeder insects for pet reptiles, are not committed burrowers either. In the wild they shelter in cracks, under debris, and in warm crevices near human structures. Indoors, they gravitate toward warmth and moisture, which is why you find them behind water heaters, in basements, and near kitchen pipes. They do not build any structure. They are opportunists that use whatever shelter is available.
Cave crickets (also called camel crickets because of their humped profile) are another non-burrowing group. They live in caves, crawl spaces, basements, and other dark humid environments. They do not chirp, they do not dig, and they have no interest in constructing anything. Their strategy is simply to find an existing dark, damp space and stay in it.
How and Where Crickets Lay Their Eggs
For the many cricket species that do deposit eggs in soil, the process centers on the ovipositor, a long, slender, needle-like structure that extends from the rear of the female’s abdomen. She drives it into the ground and lays eggs one at a time or in small clusters at a depth that varies depending on conditions. The motor programs controlling this behavior are remarkably self-contained: research on house crickets showed that the abdominal movements of egg-laying are controlled by nerve centers in the abdomen itself, and that these movements could be triggered even when the abdomen was surgically isolated from the rest of the body.4ScienceDirect. Isolation of the abdomen releases oviposition behaviour in females of the cricket, Acheta domesticus This tells us that egg-laying is not a complex decision process requiring the brain’s moment-to-moment input. It is a deeply hardwired sequence that the abdomen can execute on its own once the right conditions are met.
Females are selective about where they lay. In sand crickets, researchers found that females adjusted their behavior based on how wet or dry the substrate was: they laid eggs deeper in dry sand and distributed them more evenly than in wet sand.5Animal Behaviour. Quantitative genetics of oviposition behaviour and interactions among oviposition traits in the sand cricket This is not random variation. It reflects a real trade-off that females navigate every time they lay a clutch.
The Moisture Trade-Off for Eggs
Soil moisture is one of the most important factors determining whether cricket eggs survive. Eggs absorb a large amount of water during development, in some species up to their entire body weight, so they need moisture to develop properly. But too much water can drown them, and too little can desiccate them. Females appear to split the difference. When the substrate is moist, they tend to lay eggs closer to the surface, where conditions are moderate and newly hatched nymphs can dig out easily. When the substrate is dry, they push eggs deeper, where the soil retains more moisture and desiccation risk is lower.6PLoS ONE. Forest litter crickets prefer higher substrate moisture for oviposition: Evidence from field and lab experiments
This depth adjustment creates its own problem. Eggs laid deeper in dry soil are better protected from drying out, but the nymphs that hatch from them have a harder time digging their way to the surface. Survival rates drop for hatchlings buried in deeper, drier soil compared to those laid at shallower depths in wetter ground. There is also evidence that the probability of hatchlings reaching the surface is negatively correlated with depth, which means laying eggs deep carries a measurable cost even when it protects against desiccation.7PubMed. Testing hypotheses of adaptive variation in cricket ovipositor lengths Females are, in effect, gambling on the lesser of two dangers every time they choose a laying depth.
Forest litter crickets, which live in leaf litter on the forest floor, show a clear preference for higher substrate moisture when choosing where to lay eggs. Lab and field experiments confirmed this preference, and the researchers suggested that laying in moist surface layers allows faster development because eggs can absorb water readily, while also reducing the effort nymphs need to reach the surface after hatching.6PLoS ONE. Forest litter crickets prefer higher substrate moisture for oviposition: Evidence from field and lab experiments
Moisture also matters for egg survival during environmental disasters. A study on the Madeiran green bush-cricket found that the combination of drought and heat increased egg mortality far more than heat alone. Eggs in moist soil were buffered from fire effects, suggesting that soil moisture acts as a kind of thermal shield during wildfires.8Journal of Insect Conservation. Soil moisture reduces egg mortality during wildfires in the Madeiran green bush-cricket For species living in fire-prone habitats, this relationship between moisture and survival could determine whether a local population bounces back after a burn or disappears.
Eggs That Can Wait for Years
Some cricket species have evolved an extraordinary insurance policy: their eggs can pause development and sit in the soil for not just one winter, but multiple years. This dormancy is called diapause, and it is especially well studied in the Mormon cricket, a large, flightless species known for periodic population explosions across the western United States.
Mormon cricket eggs can remain dormant in the soil for several years without even forming an embryo. Research has shown that whether and when these eggs break dormancy depends on accumulated heat exposure over time rather than simply the number of calendar years since they were laid.9PubMed. Prolonged diapause in Mormon crickets: Embryonic responses to three measures of time In practical terms, the eggs are counting warm days rather than watching a calendar. A string of cool summers can keep eggs dormant longer, while a run of hot years can trigger earlier hatching.
What the parents eat also matters. Mormon crickets fed a high-protein diet laid eggs with shorter diapause, meaning those eggs developed and hatched sooner than eggs from parents on a lower-protein diet.10PubMed. Effects of parental diet on Mormon cricket egg diapause, embryonic development rate, and periodic outbreaks This finding has implications for understanding the dramatic population booms that periodically send millions of Mormon crickets marching across highways and farmland. If a generation of adults has access to abundant, protein-rich food, their eggs may hatch in sync after a shorter dormancy, producing a sudden wave of nymphs. Conversely, nutritionally stressed parents may produce eggs that stay dormant longer, staggering emergence over multiple years.
Multi-year diapause is a bet-hedging strategy. By not putting all eggs into one hatching season, a female’s offspring are spread across years, so at least some are likely to emerge during favorable conditions. It is a long game that plays out entirely underground, invisible to anyone walking above.
Why You Hear Crickets but Rarely See Them
Crickets are overwhelmingly nocturnal. Males call at night, females move and lay eggs at night, and most species retreat to their burrows, crevices, or leaf-litter hiding spots during the day. This means the average person’s experience of crickets is almost entirely acoustic. You hear them constantly on a summer evening but could walk through the same field in daylight and barely spot one.
The reliance on darkness is not just a habit. Research on the Australian field cricket found that exposure to artificial light at night altered mating behavior. Crickets raised under bright artificial light (around the intensity of a well-lit parking lot) were actually more likely to mate than those kept in darkness or under dim light.11Animal Behaviour. Effects of lifetime exposure to artificial light at night on cricket (Teleogryllus commodus) courtship and mating behaviour That might sound like a positive effect, but it suggests that light pollution is disrupting normal behavioral patterns in ways that are still not fully understood. Mating rates, timing of calling, and activity patterns can all shift when streetlights, porch lights, and stadium lighting replace the darkness these insects evolved under.
For anyone trying to find where crickets are living on their property, this nocturnal behavior is the main obstacle. Checking under boards, stones, pots, and ground-level debris during the day is the most reliable way to find them. In a garden, the small round holes of field cricket burrows are easiest to spot in bare or thinly vegetated soil. Mole cricket damage shows up as spongy, raised areas of turf where tunneling has loosened the root zone.
Crickets Indoors
When crickets end up inside your house, their behavior changes in one important way: they almost never successfully reproduce indoors. Female house crickets need soil or a soil-like substrate to insert their ovipositor and lay eggs. A concrete basement or tile floor does not work. If your home has potted plants with exposed soil, that is the one indoor spot where a cricket might manage to deposit eggs, but it is uncommon. The crickets you hear chirping indoors are usually adult males that wandered in seeking warmth and will die within a few weeks without reproducing.
The exception is if you are breeding crickets intentionally, say for reptile food. In that case, providing a shallow container of damp vermiculite or coconut fiber gives females a place to oviposit. The substrate needs to stay moist but not waterlogged, for the same reasons wild cricket eggs need balanced moisture. Eggs typically hatch in one to two weeks at warm room temperatures, producing tiny, nearly transparent nymphs that look like miniature adults without wings.
How Ovipositor Length Varies Across Species
Not all cricket ovipositors are the same length, and one long-standing hypothesis was that longer ovipositors evolved to let females bury eggs deeper, protecting them from cold, desiccation, and disturbance. It is a tidy story, but the evidence is mixed. A study testing this idea across three species of ground crickets found no effect of depth on overwinter egg survival, while also documenting that deeper burial reduced the probability of hatchlings making it back to the surface.7PubMed. Testing hypotheses of adaptive variation in cricket ovipositor lengths In other words, laying deeper did not help eggs survive the winter, but it did make life harder for the babies. That raises the question of why some species have long ovipositors at all.
The answer is probably that ovipositor length serves different functions in different ecological contexts. In very dry environments, deep laying may be essential to reach moist soil layers. In fire-prone areas, deeper eggs might survive surface burns. In temperate forests with moist leaf litter, shallow laying works fine and a long ovipositor offers no advantage. The trait did not evolve for one universal reason but is shaped by the specific pressures each species faces in its own habitat. This is one of those areas where the clean textbook explanation (longer ovipositor equals deeper eggs equals better survival) does not hold up once you test it across species and environments.
Tree crickets sidestep the whole soil-depth question entirely by laying inside plant tissue, which likely provides its own set of protections against desiccation and temperature extremes. Their ovipositors are adapted for piercing stems rather than penetrating soil, a completely different engineering solution to the same basic problem of keeping eggs safe until they hatch.