https://www.flickr.com/photos/dinrao/21405170553/, What a beautiful spider! document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. I didnt notice the red mark on its back until it was out in the sun. Some mimic ant behavior as well, waving their front two legs as if they were antennae or bobbing their abdomen to look more ant-like. Add in the likelihood that an Ant Mimic Spider often lives near ant hills or nests, and it is possible to almost create a safe zone for itself. These spiders are supposed to be active during the day, so it was interesting to find this one running aroundin the dark while we were out with our headlamps searching for wolf spiders. length of about 5mm to 10mm. Overview of Spider Species in the United States. The detailed statistics below may not utilize the complete dataset of 74 sightings because of certain Castianeira sightings reporting incomplete data. Castianeira Crocata - Nephilidae The small black spider with at least four white lines along its abdomen is not medically significant. This species is thought to be a generalized mimic of myrmecine or ponerine ants. The closest I can come is the ant-mimic spider, which I am pretty sure it is not. However, all spiders of the ant-mimicking spider genus Castianeira behave and move similar to ants. Ant Mimic Spider (Castianeira longipalpis) - Insect Identification Castianeira descripta, better known as the red-spotted ant-mimic Spider, gets its common name from its ant-like appearance and behavior. Spiders in the genus Castianeira have 8 eyes in 2 rows. This small black spider with white stripes on the abdomen fell down into our kitchen sink in Tulsa, OK. Hello Mark, this is an ant mimicking sac spider, given your location, most likely Castianeira longipalpa: https://usaspiders.com/castianeira-longipalpa-long-palped-ant-mimic-sac-spider/Its not a medically significant spider. Photo: Paul Bertner (used with permission). Castianeira crocata - Spider Identification & Pictures The cephalothorax (head area) can be black, brown or grayish, almost white. [9] Certain species found in Texas mimic fire ants to prey on them, while some species use Batesian mimicry, appearing like velvet ants to take advantage of their aposematism in order to deter predators. Hi Jason, this is most likely some type of ant mimicking spider of the genus Castianeira. make silken sacs adjacent to their resting places. This page was last edited on 11 September 2022, at 16:04. AntmimicsandGroundSacSpiders(Corinnidae), crocata/descripta(Castianeiracrocata/descripta). Spiders of the Eastern United States --according to comments here, on page 263 of this reference, the image labeled as Castianeira amoena is actually C. gertschi or trilineata. These long-legged arachnids have a distinct appearance, with their thin bodies and spindly legs. Hello Eric, this is an ant mimicking spider of the genus Castianeira: https://usaspiders.com/castianeira-longipalpa-long-palped-ant-mimic-sac-spider/, Your email address will not be published. nous utilisons les cookies afin de personnaliser le contenu et les publicits, de fournir des fonctionnalits pour les rseaux sociaux et analyser notre traffic. Photo: Sean McCann. If you would like to support us, we appreciate donations through Paypal here. Is the Castianeira amoena Spider Venomous. Other Characteristic Features: They are similar in appearance to true black widow spiders.
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