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Species: Ambigolimax valentianus

Common name: Three-band garden slug
Family: Limacidae 

Dorsal view of Ambigolimax valentianus
Three-band garden slugs are commonly seen around homes and in gardens. They are soft bodied and have a clear watery mucus. They are known to climb trees, but not as readily as ​Lehmannia marginata (the tree slug), another European exotic not yet documented in Oregon. 
Origin: Spain
Diet: Live and dead plants. Can be a garden and greenhouse pest.
Behavior: Moderate climbers.
Where in Oregon: Widespread in and around urban areas.
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Similar exotics to look for: Lehmannia marginata, the tree slug. The keel, or center line running down the tail, is pale (it is dark on the three-band garden slug). Report suspect tree slugs to ODA. 
Lateral image of Ambigolimax valentianus next to a quarter. Size ranges from 50 to 80 millimeters
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