Mating crickets is straightforward once you have the right setup: sexually mature adults, a warm environment, and a moist egg-laying container. A single female can produce anywhere from 60 to over 1,000 eggs in her lifetime, so even a small colony scales quickly. Here’s how to set it up from start to finish.
Telling Males From Females
The easiest way to sex a cricket is to look at the rear end. Females have a thin, needle-like tube called an ovipositor projecting from the tip of the abdomen, which they use to deposit eggs into soil. Males lack this structure entirely. You can also listen: only males chirp, producing sound by rubbing their textured forewings together. If you flip a cricket over and see smooth wings with no ovipositor, it’s a male. A long spike between two shorter tail projections (cerci) means female.
When Crickets Are Ready to Breed
House crickets reach adulthood around six weeks after hatching, once they stop molting and their wings are fully developed. Females begin laying eggs 8 to 10 days after their final molt. At that point, they’ll produce clutches of 50 to 100 eggs every two to three days for several weeks. If you’re buying crickets from a pet store or feeder supplier, look for full-sized adults with complete wings. Juveniles with wing buds aren’t sexually mature yet.
Females are noticeably larger than males, especially as they age. This size difference becomes more pronounced in older adults, so if your colony has a mix of sizes, the biggest crickets with ovipositors are your most productive egg layers.
Setting Up the Breeding Container
Use a large plastic bin or glass aquarium with smooth walls crickets can’t climb. Line the bottom with a dry substrate like coconut coir, vermiculite, or paper towels to absorb moisture and odor. About half an inch of vermiculite works well for the floor. Provide egg cartons or crumpled cardboard standing upright so the crickets have vertical hiding spots, which reduces stress and aggression.
Temperature is the single biggest factor in breeding success. Keep the container between 28°C and 34°C (roughly 82°F to 93°F). A heat mat placed under or beside the bin works for most setups. At 30°C, females lay four to five times as many eggs as they do at 20°C, so warmth directly controls your output. Humidity in the general living area should stay moderate, around 50 to 70%. Too much moisture in the main bin promotes mold; too little dries out the crickets.
The Egg-Laying Container
This is separate from the main substrate. Place a small plastic cup or deli container filled with moist vermiculite, peat moss, or a peat-and-soil mix inside the breeding bin. The substrate should be damp but not waterlogged. Females will push their ovipositors into this material and deposit eggs 1 to 2 inches below the surface. You’ll see the tiny, oblong white eggs positioned vertically in the substrate if you gently dig around.
After four to seven days, the nesting container will be packed with eggs. Remove it, snap on a lid, and replace it with a fresh one for the adults. This rotation is critical because it separates eggs from adults, preventing the adults from eating them. You can run multiple egg containers on a staggered schedule to keep a continuous supply of hatchlings coming.
How Mating Actually Works
Males initiate courtship by chirping to attract females from a distance. When a female approaches, the pair touches antennae in a face-to-face position. The male then produces a small, spermless package and transfers it to the female during a brief coupling. She eats it afterward. This process repeats several times before the male finally transfers a larger, sperm-filled package. The whole sequence, from first contact through multiple transfers, can take anywhere from several minutes to over an hour.
You don’t need to do anything to encourage this behavior. As long as you have mature adults of both sexes in a warm, well-fed environment, mating happens on its own. A ratio of roughly one male to every two or three females works well, though exact ratios aren’t critical. Too many males in a small space can lead to fighting.
Feeding Breeding Adults
Breeding females burn through a lot of energy producing eggs, so nutrition matters more here than for crickets you’re simply maintaining. Offer a dry grain-based food (chicken feed, fish flakes, or commercial cricket diet) alongside fresh vegetables like carrots, sweet potatoes, or dark leafy greens for moisture and vitamins. Remove uneaten fresh food daily before it molds.
If you’re raising crickets as feeders for reptiles or amphibians, calcium content deserves attention. Standard cricket diets contain only about 1.3% calcium, which gives a poor calcium-to-phosphorus ratio. Feeding a diet with at least 8% calcium on a dry-matter basis shifts that ratio to 1:1 or better, making the crickets far more nutritious for whatever animal eats them. Commercial gut-loading diets designed for this purpose are widely available.
Incubating the Eggs
Place the lidded egg container on a heat mat or on top of the warm breeding bin. Eggs need humidity between 65% and 80% to hatch successfully, with temperatures around 26°C to 30°C (79°F to 86°F). The closed lid traps moisture from the damp substrate, but check every couple of days and mist lightly if the surface looks dry. Don’t soak it.
At warm temperatures, eggs hatch in roughly 7 to 10 days. You’ll see tiny pinhead crickets swarming the surface of the substrate. At cooler temperatures, hatching can take two weeks or longer. Once hatching begins, move the container to a separate rearing bin so the pinheads aren’t mixed in with the adults.
Keeping Pinheads Alive
Newly hatched crickets are extremely small and vulnerable. The main threats are dehydration, drowning, and being eaten by adults. Using a removable egg-laying container solves the cannibalism problem entirely, since the eggs hatch in isolation.
In the rearing bin, provide a shallow water source like a damp sponge or wet paper towel. Open water dishes will drown pinheads. Offer finely ground dry food and small pieces of fresh vegetable. Keep the rearing bin warm, in the same temperature range as the breeding bin. As the crickets grow, thin the population by moving some to additional containers. Overcrowding leads to cannibalism at any age.
Maintenance and Cleaning
Cricket colonies produce waste and odor quickly. Remove dead crickets as soon as you spot them. Replace the floor substrate whenever it looks dark or smells strongly, typically every one to two weeks depending on colony size. Mold is the most common problem in breeding setups, and it usually starts in the egg-laying container or around uneaten food. Keeping the main bin relatively dry while confining moisture to the egg-laying cups keeps mold manageable.
A well-maintained colony with 20 to 30 breeding females can produce thousands of crickets per month. Once you have the cycle running, with adults mating in one bin, eggs incubating in lidded cups, and pinheads growing in a rearing bin, the process largely sustains itself. Your main job is feeding, cleaning, and rotating egg containers every few days.