| Platycryptus undatus | 
|  | 
| Female | 
|  | 
| Male | 
|
| Scientific classification | 
| Domain: | Eukaryota | 
 
| Kingdom: | Animalia | 
 
| Phylum: | Arthropoda | 
 
| Subphylum: | Chelicerata | 
 
| Class: | Arachnida | 
 
| Order: | Araneae | 
 
| Infraorder: | Araneomorphae | 
 
| Family: | Salticidae | 
 
| Subfamily: | Salticinae | 
 
| Genus: | Platycryptus | 
| Species: | P. undatus | 
| Binomial name | 
| Platycryptus undatus 
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|
| Synonyms | 
| List 
Aranea lurida Olivier, 1789
  Aranea undata De Geer, 1778
  Attus cunctator Walckenaer, 1837
  Attus familiaris Hentz, 1846
  Attus lentus Walckenaer, 1837
  Attus milberti Walckenaer, 1837
  Attus rupicola Hentz, 1846
  Attus undatus (De Geer, 1778)
  Dendryphantes conspersa (C. L. Koch, 1846)
  Dendryphantes undatus (De Geer, 1778)
  Dendryphantes varia (C. L. Koch, 1846)
  Marpissa conspersa C. L. Koch, 1846
  Marpissa familiaris (Hentz, 1846)
  Marpissa rupicola (Hentz, 1846)
  Marpissa undata (De Geer, 1778)
  Marpissa varia C. L. Koch, 1846
  Marptusa familiaris (Hentz, 1846)
  Marptusa rupicola (Hentz, 1846)
  Metacyrba undata (De Geer, 1778)
  Platycryptus undata (De Geer, 1778)
  Platycryptus undatus (De Geer, 1778)
  Salticus sundevalli Blackwall, 1846
  
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Platycryptus undatus, also called the tan or familiar jumping spider, is a species of jumping spider (family Salticidae), native to North America.