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The sac spiders of the family Clubionidae [a] are nocturnal, sac-building hunting spiders with a near-worldwide distribution. Their sacs, silken retreats in which they hide during the day, may be made in a variety of places, including between folded leaves or grass blades, under bark and below rocks or other ground litter.
Cheiracanthium, commonly called yellow sac spiders, is a genus of araneomorph spiders in the family Cheiracanthiidae, and was first described by Carl Ludwig Koch in 1839. [4] They are usually pale in colour, and have an abdomen that can range from yellow to beige.
Widow spiders are large, shiny house spiders with relatively spindly legs and deep, globular abdomens. Mature females have dark and shiny abdomens with one or several red spots, either above and/or below. The spots may take the form of an hourglass, or two triangles, point-to-point.
Yellow sac spiders are often found in the Seattle area and eastern Washington. They can be yellow, white or greenish and their bodies are only about a quarter- to a half-inch long. These spiders ...
Yellow Sac Spider. Yellow sac spiders are also more common in eastern Washington, but can still be found in the Seattle are. Yellow sac spiders can be yellow, white or green with darker legs and ...
“The hobo spider can inflict a painful bite that results in localized red swelling and some pain, but no necrotic lesion,” Potzler says. Usually, symptoms will get better within 24 hours with ...
The Trachelidae family, also known as "ground sac spiders", is within the group of spiders known as the RTA clade, which includes mostly wandering spiders that do not use webs. Spiders in the Trachelidae family are characterized as being 3-10mm long and having a red cephalothorax and a yellow/tan abdomen. They are commonly found indoors. [3]
Liocranidae is a family of araneomorph spiders first described by Eugène Simon in 1897. [1] They are one of several groups called "sac spiders". The holarctic genus Agroeca is the best-known, but it also includes various genera of more obscure spiders that still lack a diagnosis.