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The posterior median eyes have excellent night vision, allowing them to cast nets accurately in low-light conditions. These eyes are larger than the others, and sometimes makes these spiders appear to only have two eyes. Ogre-faced spiders are the best known genus in this family. The name refers to the perceived physical similarity to the ...
Deinopis, also known as net-casting spiders, gladiator spiders and ogre-faced spiders, [2] is a genus of net-casting spiders that was first described by W. S. MacLeay in 1839. [3] Its distribution is widely tropical and subtropical. They catch their prey using a specially spun "net".
When prey approaches the spider, it lunges forward and captures the insect in its net. In order to capture prey flying above it the spider uses a backward striking motion. When prey is outside its field of vision this spider appears to use a sensory organ located on its front legs to sense to prey. This sensory organ is known as the metatarsal ...
Wolf spider. What they look like: With over 200 species of wolf spiders crawling around, it’s no wonder that they range in size and appearance.“The largest species can be up to an inch and a ...
The secondary eyes have an inverted retina, meaning the rhabdomeres face away from the incoming light. They also typically have a tapetum made up of crystals, which are likely guanine. [ 3 ] Because incoming light passes through the rhabdomeres both before and after being reflected by the tapetum, the sensitivity of the eyes is essentially ...
This page was last edited on 10 February 2019, at 21:18 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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