The only spider in Alberta that the average person should be cautious around is the western black widow, but they are not common. This spider is shiny black, with a distinctive red hourglass-shaped mark on the underside of its stomach. It builds a small silk web close to the ground and it can be found in garages and sheds, or under rocks and fallen trees. It is not aggressive, so it will only bite to defend itself.
If there is a spider problem inside or outside of your house we can help.
Several spider species can be found in the province of Alberta. Most are nonvenomous like the cobweb spiders, house spiders, wolf spiders and jumping spiders. But two types of spiders have been considered venomous, the hobo spider and the black widow spider, however, the hobo spider may not be as dangerous as believed some time ago. If you believe you have been bitten by a black widow spider or a hobo spider, get medical help immediately, and try to positively identify the spider or catch it to confirm its type.
The poison of a hobo spider bite is not strong enough to cause life-threatening complications, however, it can cause pain and other symptoms like severe headache, nausea, weakness, and temporary vision impairment.