Cosmobunus granariusesa species of harvestman (order Opiliones) known for its exceptionally long, slender legs and fused body, common in humid areas of the Iberian Peninsula. They are nocturnal, harmless scavengers that gather in large, root-like aggregations in dark, humid spots during the day.
Key Facts About Cosmobunus Granarius:
Classification: Belong to the family Sclerosomatidae and are sometimes referred to as leiobunids.
Appearance: Characterized by very long legs (up to 72 mm) and a single, rounded, brownish body segment.
Habitat & Behavior: Prefers moist environments, often found in dense undergrowth or hiding during the day in caves, tunnels, and tree holes.
Diet: Acts as a scavenger, feeding on decaying organic material.
Life Cycle: Annual, with adults appearing in early summer. They lay eggs (16–78) in the ground, which hatch into nymphs.
Safety: Despite their intimidating look, they are completely harmless to humans.
Distribution: Primarily located in the Iberian Peninsula (Spain).
Cosmobunus granarius exhibits social behavior, often forming dense, massive, and compact aggregations that resemble a bunch of roots.
