Silver Garden Orbweaver Silver garden orbweaverĬommon name: silver argiope, silver garden orbweaver. They are not harmful to humans and are not considered medically significant. They are commonly found in rooms, garages, cellars, and caves. Their leg span is around six times their body length. Their head space resembles a human skull and was first described in 1775.įemales can grow to 8mm in body length with the males being slightly smaller. The long-bodied cellar spider is also often referred to as a daddy long legs. Long-bodied Cellar Spider Daddy long-legs spiderĬommon name: daddy long-legs spider, long-bodied cellar spider, skull spider. They are common in grasslands and fields, along with fences, walls, and gardens. They are ambush predators using their excellent jumping abilities to ambush and capture their prey, which they then drag back to their webs. They prefer open areas and do not build webs to capture prey. They are black in color with spots and stripes on their legs and abdomen. They vary in size and color with females being larger than the male, growing to around 18mm in body length, and males growing anywhere up to 15mm in body length. They have large eyes with excellent vision, which they use to capture prey. Bold Jumping Spider Female bold jumping spiderĬommon name: daring jumping spider, bold jumping spider.īold jumping spiders are common in North America and harmless to humans. It is advisable to get immediate medical treatment for a bite. If you think you have been bitten by a black widow, you should try and capture the spider in a jar to take with you to the emergency room. Males are about half the size of the female and tan in color with light stripes on the abdomen.įemale black widows have dangerous venom that can cause pain, localized swelling, and nausea. Their bodies are black with a red hourglass shape on their undersides. The black widow is one of the most venomous spiders that are found in North America with females growing to half an inch (16mm) in body length. Western Black Widow Female western black widowĬommon name: western black widow, western widow.

Male bites are not as severe as females, where a bite can cause intense pain. Juveniles tend to live in holes and small crevices. They are common in urban habitats in California. They live in a variety of habitats and have been seen on fence posts to cacti. They are common throughout the year both indoors and outdoors.

The noble false widow has a brown bulb-shaped abdomen with cream markings, that are similar to a skull shape with red to orange colored legs.įemales are larger than males and can grow to 14mm in body length, where males only grow to between 7mm and 11mm. They have an hourglass shape under their abdomen, which is bright orange to yellow. Their color ranges from dark brown to black or tan with shades of gray. The brown widow is smaller and lighter in color than the venomous black widow. Scientific name: Latrodectus geometricus.Ĭommon name: brown widow, brown button spider, grey widow, brown black widow, house button spider, geometric button spider.

Long bodied cellar spider bite