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The guinea pig died within 7 minutes, leading to a belief that the spider's venom was dangerous. However, further research on anaesthetized guinea pigs showed that the original guinea pig had actually died of shock, rather than as a result of the spider's venom. [1] In humans the bite is no more dangerous than a bee sting. [4]
Spiders in the genus Palystes are commonly called rain spiders, or lizard-eating spiders. [3] P. castaneus often appears in the home just before the onset of rain, where they hunt geckos (usually Afrogecko porphyreus). Males are regularly seen from August to December, probably looking for females. [2] P. castaneus egg sac
Palystes spiders are also commonly seen paralysed, being dragged by a large wasp called a pompilid or spider wasp. Sometimes, the wasp is not present. Pompilid wasps only hunt spiders, which they paralyse by stinging them. They then drag the spider back to their nest where they lay an egg on the spider, then seal the spider and the egg in.
“This is one of the few species of spider that can be dangerous to people,” says Potzler. “There are approximately 2,200 bites reported each year, but there has not been a death related to a ...
However, brown recluse venom is significantly dangerous to humans, while that of the huntsman spider is less so. [7] On their upper surfaces the main colours of huntsman spiders are inconspicuous shades of brown or grey, but many species have undersides more or less aposematically marked in black-and-white. [8]
Females of T. ignites largely specialise in hunting and capturing rain spiders Palystes spp., which are stung by the wasp; the sting paralyses the spider which is dragged to the wasp's nest. In the nest, the wasp lays an egg on the spider and then seals the nest.
Spiders are popping up in Halloween displays and props. Only two of the hundreds of species found in Indiana are harmful. Spiders often get filed under 'creepy,' but they're helpful, too
The ancestral (plesiomorphic) system is found in non-entelegyne spiders, where there is a single external genital opening in the female's abdomen. One or more males inject sperm from their palpal bulbs via this opening; the sperm is usually stored in special spermathecae (absent in some spiders, e.g. Pholcus ).