Sensory-legs
Guides
Leiobunum
harvestmen, daddy long-legs
Leiobunum is a genus of harvestmen (order Opiliones, family Sclerosomatidae) comprising over 100 described species. Members are characterized by exceptionally long legs relative to body size, with the second pair serving as sensory appendages rather than locomotory structures. The genus exhibits pronounced gregarious behavior, with many species forming dense aggregations on vertical surfaces. Leiobunum species are found across North America, Europe, and Asia, with some populations demonstrating rapid invasive spread in Europe.