Teal-chelicerae
Guides
Phidippus johnsoni
red-backed jumping spider, Johnson jumping spider
Phidippus johnsoni is a large jumping spider native to western North America and one of the most commonly encountered species in the genus. Adults reach approximately 10 mm in body length. Both sexes display a bright red abdomen and distinctive iridescent teal chelicerae, with females additionally bearing a black central stripe on the abdomen. The species is known to be a mimic of velvet ants (Dasymutilla), which are wasps with painful stings.