A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!


Phalangium opilio


Brown and black spider with the two body segments fused. The legs are very long. Third image show size comparison with finger. "Males have a large spur or "horn" projecting from the anterior surface of the first cheliceral segment; females do not have this feature. Males also tend to have long, thin pedipalps relative to those of other harvestmen. Both sexes have small tubercule-mounted spikes on the anterior surface of their body, in-between the top of their chelicerae and the anterior end of the dorsal surface of the body."


On concrete bridge along coast. This species is invasive in North America. "Due to its extensive range and ubiquity in anthropogenic habitats, this species is the single-most studied opilionid."


Yay, my first Harvestmen!

Species ID Suggestions

Sign in to suggest organism ID


Alaska, USA

Lat: 59.46, Long: -135.31

Spotted on Jul 22, 2013
Submitted on Aug 8, 2013

Related Spottings

Harvestman Harvestman Phalangium opilio Harvestman

Nearby Spottings

Spotting Tomentosus Root Rot Red Squirrel Spotting