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Bites occur when they are trapped or disturbed. The venomous spiders include: Western Black Widow – a medical emergency with neurotoxic venom which can cause sweating, nausea, and muscle rigidity. Yellow Sac Spider – redness, swelling, and burning. Some people experience nausea, vomiting, and headaches.
Yellow Sac Spider. Yellow sac spiders ( Cheiracanthium species) are found in eastern Washington and in the Seattle area. Their body is small, about a quarter- to a half-inch long. Yellow sac spiders can be yellow, white, or even greenish, and their legs and upper body darker than the abdomen.
31 Species Found in Washington. Alopecosa kochi. 17 pictures. Araneus diadematus. (Cross Orb-weaver) 170 pictures. Araneus gemmoides. (Cat-faced Spider) 21 pictures.
Apr 21, 2023 · The Pacific Northwest is home to a variety of spider species, including the black widow, hobo spider, wolf spider, and orb-weaver spider. The black widow is easily recognizable by its shiny black body and red hourglass marking on its abdomen. The hobo spider is brown with chevron markings on its abdomen and is known for its aggressive behavior.
Description. All Bomis species are extremely small, with females measuring approximately 3.5 mm (0.14 in) long and males only 2.5 mm (0.098 in) long. The prosoma is roughly textured and noticeably convex, while the opisthosoma is wrinkled and often forms folds on its lateral and anterior surfaces. The legs are short and thick, and the entire ...
Description -Wolf spiders are typically brown, robust, and covered in hair, giving them a distinctive appearance. Habitat -They are commonly found outdoors in gardens and grassy areas. Behavior -Wolf spiders are agile hunters and are not aggressive towards humans. Some species carry their young on their backs.
Jumping Spiders. Jumping spiders of the genus Salticidae are the largest spider family in the world. In Washington, around 10% of the spider species is part of the jumping spider families. Jumping spiders are mostly small to medium-sized spiders (up to 0.5 inches in size) with relatively short legs.
