ABOUT SPIDER
Spiders have a gloomy, but often undeserved reputation. Though most spiders are poisonous and considered predators, of the thousands of species found in Canada, only some are actually considered a health threat. In fact, spiders are actually helpful in controlling other pests in the home or garden since they feed on other insects and spiders. They usually bite and inject venom into their prey. However, they rarely bite humans.
Although spiders are often unpopular, the venom of most species is not very deadly to humans, usually resulting in no more than a slight swelling, inflammation, or itching sensation. Most spiders’ fangs are too small or weak to puncture human skin. Spiders usually will not attempt to bite unless they accidentally trapped against the skin or grasped, although some species actively guard their egg sacs or young.
One of the most common false impressions about spiders is that they are insects. Spiders are arachnids and are actually closely related to mites, ticks and scorpions. Spiders have two body parts (cephalothoraxes and abdomen), eight legs and usually six to eight eyes, while insects are classified by having three body parts (head, thorax and abdomen), six legs, and generally two compound eyes or up to three single eyes. The average life span of a spider is usually one to two years, but some can
live five years and up to 20 years.
this is the list of spiders...
Lampshade Spiders | Crevice Weavers |
Large-clawed Spiders | False Violin Spiders |
Crevice Weavers | Spitting Spiders |
Leptonetid Spiders | Recluse Spiders |
Long-legged Cave Spiders | Midget Ground Weavers |
Daddy Long-legs Spiders | Coneweb Spiders |
Armored Spiders | Plectreurid Spiders |
Dwarf Hunting Spiders | Woodlouse Hunter Spiders |
Velvet Spiders | Tubeweb Spiders |
Disc Web Spiders | Tree Trunk Spiders |
Pelican Spiders | Shield Spiders |
Palp-footed Spiders | Net-casting Spiders |
Pirate Spiders | Orb-weaver Spiders |
Hackled Orb-Weaver | Spurred Orb-Weavers |
Dwarf/Money Spiders | Dwarf Orb-weavers |
Large-jawed Spiders | Long Jawed Orb-Weavers |
Ray Spiders | Cobweb Spiders |
Wolf Spiders | Tropical Wolf Spiders |
Nursery Web Spiders | Lynx Spiders |
Zoropsid Spiders | Zorocratid Spiders |
Tangled Nest Spiders | Araneomorph Funnel-web Spiders |
Intertidal Spiders | Anyphaenid Sac Spiders |
Dwarf Sheet Spiders | Dictynid Spiders |
Wall Spiders | Huntsman Spiders |
Tengellid Spiders | Zodariid Ground Spiders |
Long-legged Sac Spiders | Sac Spiders |
Flat-bellied Ground Spiders | Titanoecid Spiders |
Long-spinneret Ground Spiders | White-tailed Spiders |
Crab Spiders | Philodromid Crab Spiders |
Liocranid Sac Spiders | Dark Sac Spiders |