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Study Pinpoints 7:35 p.m. Peak for Indoor Spider Encounters

The spike reflects autumn mating behavior with males roaming indoors.

Overview

  • A Sept. 29 inFranken.de piece revives a 2018 University of Gloucestershire analysis and advises keeping doors and windows closed around the evening surge.
  • The citizen‑science project used the 'Spider in da House' app to log more than 10,000 sightings from over 250 UK locations.
  • Reports showed most encounters in homes occurred between 18:00 and 21:00, with a smaller rise in the early morning between 06:00 and 08:00.
  • About 80% of recorded spiders were males, most often observed on walls or on the floor.
  • The findings, published in the journal Arachnology, were based on participants recording time, room and location of each sighting, and the spider’s sex when possible.