Insignarius-group
Guides
Phidippus adumbratus
California Red Jumping Spider
Phidippus adumbratus is a jumping spider in the family Salticidae, commonly known as the California Red Jumping Spider. It belongs to the insignarius species group within the genus Phidippus. The species was first described by Gertsch in 1934 from a type specimen collected in Los Angeles. Its specific epithet derives from Latin adumbratus, meaning 'secret' or 'in the dark,' possibly alluding to the missing abdomen of the holotype specimen.