Bryan McAllister’s personal reference notebook
September 12, 2026Short & citedBlog
Civic Viewpoint.
A quiet encyclopedia with a personal desk
Kept by Bryan McAllister — short guides, clear facts, and the Canadian angle when it matters.
Field Notes • Arachnid

Jumping spider

Jumping spiders are members of the spider family Salticidae, a large and diverse group known for their powerful jumps and excellent vision.

Updated September 12, 20261 min readCited sources

Jumping spiders are a large family of active hunters known for their powerful leaps and sharp eyesight. They are found worldwide, including across Canada, and are generally harmless to humans.

What it is

Jumping spiders belong to the family Salticidae, the largest and most diverse spider family with more than 6,000 described species. They are named for their ability to jump long distances relative to body size. Unlike web-builders, they are active hunters that stalk and pounce on prey.

Why it matters

These spiders are natural pest controllers, feeding on insects and other spiders. They are commonly found in gardens and fields across Canada and are considered harmless to humans. Their bites are rare and mild, making them beneficial neighbours in outdoor spaces.

Key details

Jumping spiders have excellent vision thanks to two large forward-facing eyes. They rely on sight to stalk prey and make short leaps rather than using capture webs. Their vivid colours and strong legs are distinctive. They are found nearly worldwide, including in Canadian habitats.

In short

  • Belongs to spider family Salticidae with over 6,000 species.
  • Active visual hunter that leaps on prey, does not use webs.
  • Harmless to humans; helps control insect populations.
  • Found worldwide, including in gardens across Canada.
Canadian angle

Jumping spiders are found in Canada, including many species in outdoor habitats across the country, and they are commonly encountered in gardens and other human-influenced environments.[1][2][13]

Quick questions

What is a jumping spider?
A jumping spider is any member of the family Salticidae, a group of active hunting spiders known for leaping on prey.
Do jumping spiders build webs?
They do not use webs to catch prey. Instead, they stalk and leap onto their target, though they may make small silken shelters.
Are jumping spiders dangerous to humans?
They are generally harmless. They can bite if threatened, but the bite is usually mild and venom is not considered dangerous.

Sources

  1. Britannica — https://www.britannica.com/animal/jumping-spider
    Supports: Family Salticidae; more than 6,000 species; nearly worldwide distribution.
  2. WebMD — https://www.webmd.com/a-to-z-guides/what-to-know-about-jumping-spiders
    Supports: Jumping ability; family Salticidae; about 4,000 species; North American occurrence; general harmlessness to humans.
  3. University of California, Davis — https://bohart.ucdavis.edu/sites/g/files/dgvnsk4616/files/media/documents/note_12_jumping_spiders.pdf
    Supports: About 4,000 species; body size; jumping distances 10 to 40 times body length; carnivorous diet; general harmlessness.
  4. Michigan State University Extension — https://www.canr.msu.edu/resources/jumping-spider
    Supports: Salticidae classification; active daytime hunting; no prey-capture webs; small size; bright colours; about 4,000 members.
  5. Live Science — https://www.livescience.com/jumping-spiders
    Supports: Jumping and stalking behaviour; leap distance; carnivorous diet; rare bites to humans.
  6. Britannica — https://www.britannica.com/animal/Nine-incredible-jumping-spiders
    Supports: Advanced vision; learning and problem-solving; courtship behaviours.