Spider crickets in your basement are more than a nuisance — they damage fabrics, contaminate stored items, and multiply fast. Here's how to identify an infestation and eliminate it permanently.
Spider crickets — also called cave crickets or camel crickets — don't end up in your basement by accident. They're there because your basement provides everything they need: darkness, cool temperatures, high humidity, and an abundant food supply of dead insects, cardboard, and organic debris.
In Long Island, Westchester, and Rockland County, the combination of warm humid summers and older housing stock (many basements with below-grade crawl spaces) creates ideal conditions. A humidity reading above 70% in a finished or unfinished basement virtually guarantees a spider cricket population will establish if any entry points exist.
The most obvious sign: you see them. Spider crickets are tan to dark brown, humpbacked, and range from ½ inch to 1.5 inches long with antennae as long as their entire body. They don't chirp — unlike house crickets, they're completely silent. You'll typically see them at night or when disturbing stored items.
Spider cricket fecal matter appears as tiny dark pellets or smears along baseboards, on stored boxes, and in corners. This is usually the earliest sign of an established infestation — visible before the insects themselves become obvious.
Find clothing, paper, or cardboard with unexplained holes or chew marks? Spider crickets feed on virtually anything organic. Fabrics stored in open bins or cardboard boxes in basements are especially vulnerable.
A concentrated population produces a distinct musty smell, similar to the odor of a dense insect colony. In finished basements, this can be mistaken for general mustiness — but it intensifies in specific corners where crickets congregate.
Spider crickets are not venomous and don't bite humans. The risks are:
For a complete step-by-step guide, see our main article: 7 Strategies to Eliminate Spider Crickets Permanently. The summary for basement-specific infestations:
Buy an inexpensive humidity meter (hygrometer) and measure your basement. Readings above 70% confirm the core problem. Target below 60% using a dehumidifier. Many homeowners have resolved spider cricket infestations in 4-6 weeks using only a dehumidifier — no chemicals needed.
Move cardboard boxes off the floor and out of the basement entirely. Transfer stored items to sealed plastic containers on shelves. This eliminates nesting sites and food sources simultaneously.
Vacuum all corners, behind shelving units, and under stored items. This removes eggs, nymphs, and adults in one pass. Dispose of the vacuum bag outside immediately.
Dust food-grade diatomaceous earth along baseboards, in corners, and under shelving. It damages spider cricket exoskeletons and dehydrates them on contact. Reapply after any moisture exposure.
Inspect the basement perimeter for cracks, gaps around pipes, and damaged window/vent screens. Seal everything with appropriate caulk or foam. New individuals cannot establish if entry is blocked.
If you've found droppings, evidence of fabric damage, or regular cricket sightings, the infestation is already established. Professional treatment can achieve faster knockdown and includes moisture assessment, exclusion inspection, and follow-up visits. The Bugs Stop Here serves basements across Suffolk County, Nassau County, Westchester County, The Bronx, and Rockland County — same-day service available.
Sudden sightings usually mean the population has grown large enough to be visible — not that they just arrived. Spider crickets establish quietly and stay hidden until overcrowding pushes them into view. If you're seeing them during the day, the infestation is already significant. Check humidity levels — above 70% is the primary driver.
Their presence is a reliable indicator of elevated humidity, which can also cause mold growth, wood rot, and structural issues over time. Address the moisture problem for spider cricket control and you're also protecting your home from more expensive long-term damage.
Any sighting during the day indicates overpopulation — they're nocturnal and stay hidden when populations are manageable. Finding even 3-5 during a daytime inspection suggests dozens to hundreds are hiding in cracks and stored items. Early treatment is significantly easier than waiting.
No. Without intervention, populations continue to grow as long as conditions (moisture, food, harborage) remain favorable. Seasonal cold in New York slows activity but doesn't eliminate established populations — they overwinter in warm basement environments and resume breeding in spring.
Camel spiders, cave crickets, and spider crickets in your home are more than a nuisance — they can damage fabrics, contaminate food, and multiply rapidly. Here's exactly how to identify them and eliminate infestations without poison.
Read More →Spider crickets don't appear randomly. They're drawn to specific conditions inside your home and enter through predictable pathways. Fix these 8 entry points and you eliminate the problem at its source.
Read More →Killing adult spider crickets isn't enough — their eggs survive treatment and hatch new populations weeks later. Here's exactly where they lay eggs, what the eggs look like, and how to eliminate them completely.
Read More →Your family deserves a home without pests. Get a free estimate from your local experts — family-friendly treatments, honest pricing, and we stand behind our work.