Color- Brown, Black, Gray, mixture   /   Legs-Eight    / Shape-Round    / Size- 1mm-4cm        Antenna–No /  Flying-No

Region- Calgary, Alberta, Canada

There are about 3,000species in Canada. All spiders are predators, feeding mainly on insects.  They are found on siding and decks, in boathouses, children’s play-structures and dog houses in the Calgary area.  Some spiders become nuisance pests around the home when their webs accumulate or gather dust and debris after the spider has left the site.  Because not all spiders remove or recycle their webs, their webbing tends to accumulate over time in unsightly tangles.. These webs are sticky, matted, and are difficult to remove. Also, some spiders have a venom which is dangerous and uncomfortable to humans and animals.

To Note:

The brown recluse spider (Loxosceles  Reclusa) is a poisonous spider that is light brown in color.  It is about 1/2 inch in length, has a violin-shaped marking on themid-section.  While most spiders have 8 eyes, the brown recluse has 6. These spiders make an irregular and sticky web that is used for shelter rather than for trapping insects.

The female black widow spider (Latrodectus Mactans) is a poisonous spider in the Calgary area.  It has a somewhat round, shiny black abdomen with red markings that resemble an hourglass on the underside.  The size of the body is around a 1/2 inch wide and 1 1/2 to 1 3/8 inches long.  Five different species of the black widow spider are active in Canada.  They generally live under rocks and under fallen trees outside the home.  In and around the house they are often found in firewood piles, basements and crawlspaces, garages and sheds.  They feed on insects and other spiders that are trapped in their web. They are usually not aggressive spiders, but if handled or accidentally touched, they may bite.