[8], Some species mimic specific groups of ants, while others only have generic body modifications to look more ant-like, such as an elongated body or a carapace pattern that creates the illusion of a third body segment. [5] They are found in Eurasia, Africa, and the Americas, but are absent from Australia. Their secretive nature, way of moving, and predatory nature make them common villains in folklore and popular media. 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. The spider species Castianeira crocata belongs to the genus Castianeira, in the family Corinnidae. The rectangular yellow mark was orientated vertically on the back of its abdomen. No, they are not particularly rare, but it is a bit unusual to find one inside! Castianeira longipalpa, not poisonous, found him inside :) Submitted by: squidasaurusrex They move about independently after hatching. They might benefit by looking ant-like to predators who find ants distasteful (and dont look too closely). Hi Jason, this is most likely some type of ant mimicking spider of the genus Castianeira. All rights reserved. Red spotted ant mimic spiders mimics the behavior of ants to get close enough to attack them. This jumping spider is one of the few found outside tropical regions, and there are many varieties. These spiders are common and not an endangered species. This appears to be another ant mimic spider, possibly in the genus Castianeira. That means it does not catch its prey with a web but instead wanders around, searching for its meal. This was in our house by Houston Tx. Picture 2. Size: They have a document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); All identification and information on USAspiders.com are free - of course. ): https://usaspiders.com/?s=castianeiraTo determine the species, I would need to know the location where it was found. The sac spiders of Canada and Alaska. I didnt notice the red mark on its back until it was out in the sun. Other Characteristic Features: They are similar in appearance to true black widow spiders. Initially, the doctors at the Huidong County People's Hospital tried to check if the woman . Females are only slightly larger than males. Its Jill Chaskey FROM Harrison Michigan no Jill Harrison. Photo: Sean McCann. Dondale, C. D., & Redner, J. H. (1982). okay so i have found a spider like this in my shed, only it has small white lines on either side of the red fat line so does that sound like the same one? Castianeira longipalpa is often confused with its close relative. These spiders build webs close to their resting places. Very fast, maybe 1 cm body length. Castianeiraoccidens from South Fork, Arizona. Castianeira longipalpa, found under a rock near a lot of ants at Iona beach inRichmond, British Columbia. Castianeira crocata is a species of true spider in the family Corinnidae, sometimes called by the common name red stripe spider. Contributors own the copyright to and are solely responsible for contributed content.Click the contributor's name for licensing and usage information. Though its body shape is quite different, its characteristic black body and red-marked back puts it at risk of being mistaken for a black widow spider. Internet References ~ digitallibrary.amnh.org - New American Spiders of the Clubionidae, Gertsch 1942. An adult female can reach a body size of maximum 1/2 in (13 mm). Mus. Fear of a few highly venomous spiders, such as black widow and brown recluse spiders, has expanded to include all spiders. They are not medically significant. I took a picture but he was hiding under a piece of grass. from Singapore. Less than an inch in size.Maryland, Hello Kam, this is an ant mimicking spider (Castianeira sp.). Related Article: Hobo Spider vs Grass Spider 6. Cellar spiders, also known as daddy long legs, are a common sight in many homes.
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