Cyclocosmia torreya

Distinguished from other trapdoor spiders by the uniquely flattened, disk-shaped abdominal terminus used as a burrow plug. The abdominal truncation is diagnostic for the genus Cyclocosmia. Within the genus, C. torreya is geographically restricted to the Florida Panhandle, separating it from congeners found in eastern Asia and other North American regions. The specific name references Torreya State Park, the type locality.

Medium-sized spider with a highly sclerotized, abruptly truncated abdomen that forms a flat, circular disk. The abdominal shield is hardened and fits precisely against the burrow entrance like a cork. Coloration typically dark with contrasting pale bands across the abdomen, creating a striking pattern. The cephalothorax is robust, and the legs are relatively short and stout, adapted for digging and burrow maintenance rather than active hunting.

Restricted to bluff forests along the Apalachicola River in northern Florida. Associated with the same ravine and slope habitats that support the endemic Florida nutmeg (Torreya taxifolia). The species excavates burrows in well-drained, stable soils of forested slopes.

Endemic to the United States; known only from the Apalachicola River corridor in the Florida Panhandle, specifically from Liberty County near Torreya State Park. All confirmed records are from this limited geographic area.

Constructs silk-lined burrows in soil, sealed with the hardened abdominal disk when the spider is inside. The cork-like abdominal plug prevents predator entry, particularly from parasitoid wasps. The spider likely waits at the burrow entrance to ambush passing prey. When threatened, it retreats deep into the burrow and seals the entrance with its abdominal shield.

Subject of viral misinformation in 2024 when images of a related Asian Cyclocosmia species were falsely attributed to this species, claiming lethal venom and beach habitat. The actual species poses no threat to humans; its venom is not known to be toxic to humans, and it inhabits inland forest bluffs rather than coastal beaches. The viral incident highlighted common misconceptions about spider identification and venom potency.

• Cyclocosmia truncataEastern Asian congener with similar abdominal truncation; distinguished by geographic separation (Asia vs. Florida)
• Other HalonoproctidaeLack the diagnostic truncated, disk-like abdomen; use conventional trapdoor lids rather than body plugs

Falsely portrayed in viral social media as a deadly "Oreo spider" found on beaches with venom lethal to humans within five minutes. These claims conflated images of an Asian Cyclocosmia species with fabricated toxicity and habitat details. The actual C. torreya is not found on beaches, is not dangerously venomous to humans, and is geographically restricted to inland Florida forests.

• endemic
• trapdoor spider
• mygalomorph
• Florida endemic
• Apalachicola River
• burrowing spider
• anti-predator adaptation
• cryptic species

• BugGuide
• GBIF taxonomy match
• iNaturalist taxon
• Catalogue of Life
• Oh, Those Beach-Bum Spiders! | Bug Squad
• Heliconiidae | Beetles In The Bush