Apalachicola-river
Guides
Cyclocosmia torreya
Torreya Trapdoor Spider
Cyclocosmia torreya is a cork-lid trapdoor spider endemic to the Apalachicola River region of Florida. The species constructs burrows sealed with a hardened, disk-like abdominal shield that serves as a defensive plug against predators. It belongs to a genus characterized by this unique abdominal truncation, which has evolved independently as an anti-predator adaptation. The species is rare and poorly known, with only a handful of documented observations.
Hylogomphus geminatus
Twin-striped Clubtail
Hylogomphus geminatus, commonly known as the Twin-striped Clubtail, is a dragonfly species in the family Gomphidae endemic to the southeastern United States. The species was transferred from genus Gomphus to Hylogomphus in 2017 when Hylogomphus was elevated from subgenus to full genus rank. It exhibits pronounced ecomorphological variation in body length across its limited geographic range, with significant differences observed between populations on either side of the Apalachicola River in Florida. The species is listed as Least Concern by IUCN, though it was previously assessed as Near Threatened in 2007.