How Long Do Crickets Survive? The Mistakes That Outlast the Answer

A house cricket (Acheta domesticus) survives about 30 to 40 days as an adult after its final moult, and roughly three to five months from egg to death. The egg takes 13 days to hatch at 30 °C (86 °F), and the nymph needs another six to twelve weeks to reach adulthood. Indoors, a lone male that wandered in from outside stops calling somewhere inside that adult window, at the outside nine weeks from the night you first hear him, and he does not come back. A pair that breeds resets the clock, and the next generation begins calling eight to fourteen weeks later. What you should do is decided by the eight-week window that separates those two cases, and the lifespan figure alone will not tell you which one you have.

The lifespan, stage by stage, with the source of each number

Twenty-three years of labelling an ingredient distributor's jars twice over, once as the supplier named it and once as anybody would, teaches you that a confident answer to the wrong question is worse than no answer. Cricket lifespan is that kind of question.

Here is the sequence, in the order it happens:

1. Egg: 13 days at 30 °C (86 °F). Clifford, Roe and Woodring reported a 13-day incubation at 30.5 °C in the Annals of the Entomological Society of America in 1977, and the figure has held up. Mitchaothai and colleagues, publishing in Animals in 2024, incubated house cricket eggs across 23–33 °C at 70% relative humidity and got a mean hatch onset of 13.70 ± 2.78 days. At the optimum they identified, 30 °C and 65–75% relative humidity, hatching began on day 12 and the whole clutch came out over one to two days.
2. Nymph: six to twelve weeks, through seven to ten moults. Clifford and Woodring's 1990 rearing paper in the Journal of Applied Entomology puts optimal development at 30 °C, with the useful range running roughly 26–32 °C. Above 35 °C mortality approaches 100%. A house at 21 °C sits below the whole band, which is why the slow end of that range is the realistic one indoors.
3. Adult: 30 to 40 days. Nowosielski and Patton, writing in the Journal of Insect Physiology in 1965, ran life-tables on a laboratory population and found a mean adult lifespan of 30 to 40 days after the final moult. The wider rearing literature, drawing on Ghouri and McFarlane (1958), Nowosielski and Patton, and Patton (1978), gives the adult stage a broader span of 30 to 64 days.

Those two adult figures are not in conflict, and it is worth knowing why. Nowosielski and Patton ran three parallel series: crickets housed in mixed-sex groups, in single-sex groups, and alone. The mortality curves diverged enough that they named two separate causes, a "mating effect" and a "group effect." A male that mates and a male that never finds a female do not die on the same schedule. Neither do a crowded cricket and a solitary one. So 30 to 40 days is the controlled mean, and the upper end of 64 days belongs to animals kept cooler, unmated, or alone. The chirping male under your dishwasher, unmated and by himself in a house at 21 °C, is closer to the long end than the short one.

Add the stages and you get 85 to 135 days from egg to death, which matches the roughly 120 days at 30 °C that the aging-research groups now using this species as a model organism report.

Is one male calling, or is something breeding?

Only adult males make the sound. Clemson's Home and Garden Information Center puts it plainly: when a cricket produces sound, it is an adult male rubbing his wings together, either to attract a female or as an alarm when he is disturbed. The University of Maryland Extension adds the detail that finishes the logic: camel crickets, the humpbacked things in basements, have no sound-producing organs and no wings at all. A chirp eliminates them.

That gives you a countable quantity: every simultaneous, spatially distinct song is one adult male. Not one cricket; one adult male. Females and nymphs are silent and uncounted, which is the whole trap.

Counting is easy to get wrong because two males overlapping sound like one fast one. There is an arithmetic check. NOAA's education explainer gives the standard rule of thumb: count chirps in 15 seconds, add 40, and you have the approximate air temperature in Fahrenheit. At 70 °F a single caller should be running near 30 chirps per 15 seconds. If you count 60 and your thermostat says 70, the formula returns 100 °F, which is not your house. You are hearing two. I would not lean on this for the absolute reading, because Dolbear's constants were worked out on the snowy tree cricket and later refined for field crickets, not for Acheta domesticus. The doubling, though, is arithmetic, and arithmetic does not care which species it is.

I learned this the expensive way. Around 2011 I had one caller going near the gums and hydrocolloids. I knew the lifespan number, did the sum, and decided to let it die on schedule. Eight weeks later there were three callers. What I had was a damp floor drain and a breeding pocket, and by the time I dealt with it the crickets had gone at what crickets go at indoors: paper, glue, fabric. I rewrote a hundred and forty labels by hand, and a sample library whose labels are wrong is not a library. The lifespan figure was correct. My use of it was not.

The monitoring period is eight weeks. That number comes straight out of the development times above: 13 days of incubation plus the fast end of nymphal development. If a second caller appears within eight weeks of the first one going quiet, eggs hatched in your house. If eight weeks pass in silence, the first male was a stray and the matter is closed. In a house held at 21 °C the nymphs run at the slow end and the second wave can take fourteen weeks, so treat eight as the point where you stop worrying and fourteen as the point where you stop listening.

A lone adult versus a reproducing indoor population

A lone adult male is a fixed point. He calls from one location, the call does not migrate room to room, and it stops permanently somewhere inside the 30-to-64-day adult window. Nothing you do shortens it much, and nothing you fail to do lengthens it. The University of Maryland Extension's assessment is that most pest crickets wander in from outside, which makes this the common case.

A reproducing population is a moving one. Call points multiply, they shift as nymphs mature in different places, and silence is temporary rather than terminal. It requires one thing the stray does not: a damp site where a female can insert eggs. Clemson notes that house crickets can spend their whole lives inside buildings, and that indoors they lay many eggs. Maryland's wording is more cautious, saying house and camel crickets may reproduce indoors. Minnesota's extension service reports that crickets there rarely reproduce indoors and run one generation a year. Arizona's, describing field crickets, states flatly that they do not produce young indoors.

Now for the argument against me, which is a good one. If most indoor crickets are strays, then "wait a month, it dies" is right most of the time, and the eight-week census I am recommending is effort spent on a problem that was going to solve itself. That is true, and I will not pretend otherwise. Waiting is the higher-probability play. What it is not is the cheaper play, because the two outcomes cost wildly different amounts. Being right about a stray saves you three nights of listening. Being wrong about a breeding site costs you a season of chewed material and a population that is by then in its second generation. I will trade three free nights against that asymmetry every time.

Why lowering the humidity in your whole house does not end it

Until about 2019 the first thing I told anyone was to buy a dehumidifier. I stopped, and the reason is in Clifford and Woodring's rearing protocol. Eggs and pinhead nymphs need high humidity, but older nymphs and adults are reared successfully at around 50% relative humidity. The EPA tells homeowners to keep indoor relative humidity below 60% and ideally between 30 and 50%. Read those two side by side and the problem is obvious: the humidity that a US agency calls a well-run house is the humidity a laboratory deliberately chooses to raise adult crickets in. Bringing a house from 65% down to 45% does not inconvenience an adult cricket at all.

What it does not touch is the wet micro-site, and that is the thing that matters. A female needs a damp medium she can push eggs into: a floor drain, condensation under an appliance, potting soil, a crawl space with standing water. Those spots stay saturated whatever your hallway hygrometer reads, because they are wet from liquid water rather than from air.

So the EPA range is still worth hitting, for mold and dust mites, on the agency's own reasoning. I no longer sell it as cricket control. The cricket-relevant action is finding the one wet square foot and drying it, and that is a plumbing task rather than an appliance purchase.

Three insects share the word "cricket," and they do not share an answer

This is the part of the subject I am actually qualified for. "Cricket" behaves like a trade name that means three different products depending on who printed the label.

| | House cricket | Field cricket | Camel cricket | |---|---|---|---| | Chirps | Yes, adult males | Yes, adult males | No sound organs, no wings | | Look | 19–22 mm, yellowish-brown, three dark bands on the head | 13–33 mm, robust, black or brown | 13–33 mm, humpbacked, very long antennae and legs | | Drawn to | Warmth and light | Light | Dark and damp only | | Found indoors in | Kitchens, near heaters, closets, upholstery | Wherever it wandered in | Basements, crawl spaces, cellars | | Breeds indoors | Can complete its whole life inside a building | Usually not; lays eggs in soil outdoors | Sometimes, in damp basements |

Sizes and habits come from the Maryland and Clemson fact sheets, and for camel crickets from the Missouri Department of Conservation.

That table also explains why the extension services appear to disagree with each other about indoor breeding. They are not describing the same insect, and they are not describing the same climate. Minnesota's one-generation-a-year cricket and Clemson's building-dweller are different animals under one English word. If you go looking for "how long do crickets survive" without settling which of the three you have, you will find four correct answers that contradict one another, and you will believe the first one.

Settle it with the chirp. Sound at all means house or field cricket. Sound from a warm interior spot at night, in a pale striped insect under an inch long, means house cricket, and the numbers at the top of this page are yours.

What actually shortens indoor survival

This is what I run now, in this order, because each step feeds the next.

1. Count call points on three separate nights. Write down how many distinct locations are singing and where. Three nights, because a single night tells you nothing about turnover.
2. Set sticky traps flat against the base of the wall near each call point and check them for 14 days. Crickets run along wall-floor junctions rather than across open floor. Fourteen days is long enough to catch nymphs, and nymphs are the finding that matters: a half-grown nymph means something hatched indoors.
3. Find the wet site and dry it. Follow the traps. The concentration points to the moisture, not the other way round.
4. Vacuum what you find, and seal the ways in. Maryland Extension pairs the vacuum and sticky traps with weather-stripping, caulk and screens on dryer vents, basement windows and utility penetrations, treating pesticides as a supplement to those repairs. Yellow porch bulbs instead of white are on the same list.
5. Keep listening for eight weeks, and fourteen in a cool house. Silence that holds through that window is the end of it.

One limit I should state. I have never applied a perimeter barrier treatment around the outside of a building and I cannot tell you whether they work; I have no way to test one and I am not going to repeat what the labels claim. What I can vouch for is the trap census, because I have run it repeatedly and it has never taken more than about ten days to tell me where the animals actually were. That is the step I would keep if I could only keep one.

Questions people actually ask

What kills crickets instantly in the house?

A vacuum. It is instant, total, and works on nymphs and adults alike. A contact aerosol labelled for crickets kills what it directly wets. Nothing kills eggs on contact, which is why Maryland Extension treats vacuuming and sticky traps as the indoor measures and pesticides as a supplement to sealing work.

How long do crickets live after they start chirping?

Chirping begins at the final moult, so a calling male has his whole adult life ahead of him: a mean of 30 to 40 days in Nowosielski and Patton's 1965 life-tables, and up to 64 days across the wider rearing literature. An unmated male alone in a cool house sits near the long end.

What smell does cricket hate?

Heinbockel and colleagues tested 27 essential oils against house crickets in Insects in 2026. Fourteen were strongly repellent, including peppermint, sage, wintergreen, basil, rosemary, cinnamon, tea tree, citronella, lemongrass, lavender and lemon. DEET and IR3535 produced no significant repellency at all. The authors caution that a six-hour lab arena may not translate to a house.

How long do crickets survive without food?

I could not find a household-applicable figure, and I would rather say so. Mahavidanage and colleagues measured starvation resistance in the Journal of Orthoptera Research in 2023 and found it driven by rearing density and sex. Indoors the question is moot anyway: house crickets eat paper, fabric and binding glue, so a home is never foodless.

How long do crickets survive indoors?

A stray adult male survives the remainder of his adult lifespan, typically 30 to 40 days and up to 64. A breeding population survives indefinitely, because Clemson's fact sheet notes house crickets can complete their entire lives inside a building. The deciding factor is whether a permanently damp site exists for egg-laying, not the calendar.

Is the sound from one adult male or a breeding site?

Count distinct call points on three separate nights. One unchanging point that falls silent within nine weeks and stays silent for eight more is a lone male. Two or more points, migrating locations, or a new caller starting after the first stops, means eggs hatched indoors. Camel crickets are silent, so any chirp rules them out.