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Stunned Scientists Discover Unique Tidal Trapdoor Spider
31 Oct
Summary
- A new trapdoor spider species was discovered on Ilot Vacoas in 2023.
- Named the Mauritian tidal trapdoor spider, it lives in ancient worm tubes.
- The spider seals its unique burrow with a silk, sand, and algae door.
A groundbreaking discovery has been made in Mauritius, where scientists have identified a completely new species of trapdoor spider. Found in 2023 on the island of Ilot Vacoas by a team from the Durrell Wildlife Conservation Trust, the arachnid has been named the Mauritian tidal trapdoor spider (Idioctis marevallum). This unique creature exhibits a lifestyle previously unseen in trapdoor spiders.
Instead of excavating its own dwelling, the Mauritian tidal spider resides in pre-existing tubes within coralline bedrock. These tubes are thought to have been formed by worms and molluscs millennia ago. The spider constructs a specialized trapdoor using a mixture of silk, sand, and algae to secure its home. Remarkably, this dwelling is fully submerged during high tide and regularly subjected to the force of ocean waves.
Dr. Max Tercel, the entomologist who made the astonishing find, described the moment as uncovering a "hidden treasure." He located the spider on a coastal rock area with sparse vegetation, an unexpected habitat for such a significant discovery. The spider seals the entrance to its burrow with a trapdoor made from silk, sand, and algae, adapting to its challenging, wave-swept environment.
