{"id":6719,"date":"2007-11-15T00:00:18","date_gmt":"2007-11-15T06:00:18","guid":{"rendered":"https:\/\/uwm.edu\/field-station\/?p=6719"},"modified":"2017-06-25T16:32:14","modified_gmt":"2017-06-25T21:32:14","slug":"crabspiders","status":"publish","type":"post","link":"https:\/\/uwm.edu\/field-station\/bug-of-the-week\/crabspiders\/","title":{"rendered":"Crab Spiders (Family Thomisidae)"},"content":{"rendered":"<p>Howdy, BugFans,<\/p>\n<p>This stars of this week\u2019s episode are not insects, but crab spiders, one of the Bug Lady\u2019s favorite critters. They fit into the phylum Arthropoda (\u201cjointed legs\u201d) which consists of the Crustaceans, the Insects and the Arachnids, are in the class Arachnida and are true spiders in the order Araneae. (In other words, Arachnids are under the big Arthropod \u201cumbrella,\u201d which shelters, among others, shrimp, crabs, sowbugs, scorpions, spiders\/spider relative\/mites\/ticks, millipedes, centipedes and insects. Araneae or true spiders are, in turn, under the Arachnid umbrella). They have two body segments, a cephalothorax and an abdomen, and 8 legs. Crab spiders are so named because they sidle across the flower tops with their front legs held like crab claws. There are about 200 species in the North America. Crab spiders don\u2019t make webs.<\/p>\n<p>[metaslider id=6721]<\/p>\n<p>The flower spider or goldenrod spider (<em>Misumena vatia<\/em>) is a common species. These come in white and yellow models with the red racing stripes that explain their other name&mdash;Red-spotted Crab spider. They can change color from one to the other in about 10 days, so you frequently see white spiders on white flowers and yellow on yellow (but they don\u2019t turn purple or rose).<\/p>\n<p>[metaslider id=6724]<\/p>\n<p>It looks like the male crab spider on the Black-eyed Susan was about to have a \u201cgottcha\u201d moment until the BugLady\u2019s camera interrupted. According to the small but excellent <em>Golden Guide to Spiders and their Kin<\/em>, \u201cThey have good eyesight, and when they nab their prey, they hold it up in the air and suck out the juices.\u201d<\/p>\n<p>[metaslider id=6727]<\/p>\n<p>The &#8220;nesting\u201d crab spiders remind the BugLady of those Russian matrushka nesting doll sets. The BugLady has been brainstorming with herself about what is going on here. A spider is shedding its skin? They generally pull themselves out through a split in the abdomen, not through the mouth. A (blush) post-mating bit of cannibalism? The \u201ceatee\u201d looks like the same gender as the \u201ceater.\u201d Simple predation (again, cannibalism)? Tough room!<\/p>\n<p>&nbsp;<br \/>\n<em>The BugLady<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>Crab spiders<\/strong> are so named because they sidle across the flower tops with their front legs held like crab claws. There are about 200 species in the North America.<\/p>\n","protected":false},"author":3666,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","uwm_wg_additional_authors":[]},"categories":[8],"tags":[31],"class_list":["post-6719","post","type-post","status-publish","format-standard","hentry","category-bug-of-the-week","tag-spiders"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Field Station<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uwm.edu\/field-station\/bug-of-the-week\/crabspiders\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Crab Spiders (Family Thomisidae)\" \/>\n<meta property=\"og:description\" content=\"Crab spiders are so named because they sidle across the flower tops with their front legs held like crab claws. 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