Arachnid · GBIF taxon 2171189
Platycryptus undatus
platycryptus undatusAlso known as Tan Jumping Spider, Familiar Jumping Spider, Bark Jumping Spider
Tan jumping spiders are flattened, agile hunters that seamlessly blend against gray tree bark and wooden structures across eastern North America. Relying on remarkably sharp vision from oversized principal eyes, they stalk prey without webs and pounce with surprising precision. Curious and harmless, these small arachnids frequently inspect nearby humans and engage in complex visual courtship displays.
DiurnalAgile JumperBark Camouflage
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & prey
- Flies
- Moths
- Caterpillars
Predators
- Birds
- Lizards
- Mud Dauber Wasps
ThreatsPesticide use, habitat destruction, and predatory wasps
HabitatsDeciduous forests, tree bark, wooden fences, and exterior building walls
Life span1 to 2 years
Size / weightNot available
Classification
- OrderAraneae
- FamilySalticidae
- GenusPlatycryptus
- Speciesplatycryptus undatus
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Safe to observe at a normal distance.
Responsible observation
- Bark Search: Scan tree trunks, wooden fences, and sunlit walls for their gray-brown camouflage.
- Approach Slowly: Move smooth and slow when getting close, as their sharp vision spots fast motion easily.
- Gentle Interaction: Allow them to step onto a hand voluntarily rather than attempting to trap them.
Predator (c) Michael K. Oliver, Ph.D., some rights reserved (CC BY), uploaded by Michael K. Oliver, Ph.D. · cc-by
Predator Kaldari / Public domain · cc0
Close Relative (c) Katja Schulz, some rights reserved (CC BY), uploaded by Katja Schulz · cc-by
Close Relative (c) Анатолий Озерной /Anatoly Ozernoy, some rights reserved (CC BY-SA), uploaded by Анатолий Озерной /Anatoly Ozernoy · cc-by-sa
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