You reach for a tissue and find roughly thirty tiny ants between the sheets. Something similar happened about a month earlier. No candy near the box, and the large window was closed. Where on earth are they coming from?
The more interesting question is why they picked tissues. Have the ants discovered a property listing advertising "cosy wood-style interiors, available immediately"? Please rent somewhere else.
The paper industry has actually investigated this
Japanese manufacturer Nippon Paper Crecia addresses ants gathering on tissues in its official FAQ. It suggests a small dark ant called ruriari in Japan, scientifically Ochetellus glaber. This species uses narrow spaces beneath bark and among decaying branches. Layers of wood-pulp tissue may resemble those shelters. The company says it does not intentionally add ant-attracting ingredients to ordinary tissues.
The Japanese Consumers' Co-operative Union describes similar reports involving toilet paper and kitchen towels. So a tissue box full of ants is strange, but hardly imaginary. Still, without a clear photo or specimen, the ants in any individual home cannot be identified confidently. And gathering in a box does not prove an established nest. A property viewing is not a signed lease.
Experiments reveal an absurdly small doorway
A Japanese study published in 1992 found several ant species entering opened tissue boxes. It also documented one case in which ruriari moved out of their experimental nest and into a box. However, the researchers considered accidental entry through openings possible, rather than a special attraction to sugar in the paper.
In a separate passage test, the ants crossed a 0.5 mm gap. That is a laboratory measurement, not a measurement of anyone's windows. Yet it explains why "the window was shut" may not end the investigation. For a human, a closed window is a barrier; to a tiny ant, it may simply be architecture.
A 2024 conference abstract suggested a different hypothesis for paper-damaging behavior: these ants may mistake some papers for food resembling a wasp nest. This is a research proposal, not a settled explanation for every infestation. The box has now been investigated as housing, an accidental corridor and mistaken lunch. It was made to help people blow their noses.
Could rain be driving ants inside?
Possibly. University of Maryland Extension notes that ants can enter houses when outdoor conditions become excessively wet or dry. That does not mean rain is always more important than food, and it does not establish what triggered this particular incident.
Possible routes include small windows, window-frame joints, plumbing openings and gaps around walls. Many ants leave chemical trails that other workers can follow. The resident got no invitation, yet the ant group chat apparently scheduled a viewing for thirty guests.
How to get them out without guessing
Do not use tissues that ants have occupied. Discard the box if needed, clean the surrounding area with soapy water to disturb scent trails, and move the tissues elsewhere. If ants reappear, photograph them next to a size reference, and note the number, location, time and preceding rain.
Watch where the ants travel to locate a possible entrance. For repeated problems, share the photos and observations with the property manager or a pest-control professional. Sealing a building gap may require their help. Spraying every corner blindly does not reveal where the insects are entering.
Verdict: no vacancies
Tiny ants genuinely do gather in tissues, and Ochetellus glaber is one plausible explanation. Shelter, accidental entry, paper-directed behavior and weather can each play a part, but identifying the species and route requires evidence.
A household mystery led to manufacturers' FAQs, a 1992 experiment and an entomology abstract. Quite an investigation for a box of tissues.
Notice to all ants: this home is occupied. No viewings. No complimentary tissues.
References (6)
- Nippon Paper Crecia: official tissue FAQ
- Japan Consumers' Co-operative Union: tissue and ants FAQ (2024)
- Shinoda (1992), ants entering tissue paper, Pestology 7(1):55–57
- 2024 entomology conference abstract, Ochetellus glaber and tissue damage
- University of Maryland Extension: Ants—Indoor Insects
- University of Minnesota Extension: Ants
