Johnson's Jumping Spider
Phidippus johnsoni
Also known as: Red-backed Jumping Spider · Johnson Jumper
Arachnida
UNCOMMON
Stats
- Lifespan
- About 1 yr
- Size
- Large
- Diet
- Insectivore
- Activity
- Diurnal
- Social
- Solitary
- Biome
- Temperate shrubland
- Range
- Western North America
- Movement
- Hopping
- Breeding
- Egg-laying
- Defense
- Speed
- Status
- Uncommon
About
Johnson's jumping spider is a bold western North American hunter with a black body, a bright red abdomen (on males), and a pair of oversized forward-facing eyes that give it near-360-degree vision and depth perception sharp enough to judge jumps many times its own body length. Its iridescent green chelicerae flash in direct sunlight as it stalks prey rather than trapping it in a web.
Life cycle
- 1.egg sacA silk-wrapped egg sac shelters a clutch of eggs until the young are ready to emerge.
- 2.juvenileA spiderling emerges from the egg sac already in miniature adult form and starts catching prey almost immediately.
- 3.subadultA near-adult arachnid molts through several instars, growing larger and developing mature markings.
- 4.adultFully grown after its final molt.
Learn more
Taxonomy
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Arachnida
- Order
- Araneae
- Family
- Salticidae
- Genus
- Phidippus
- Species
- Phidippus johnsoni