In a 20th century legend, spider eggs hatched inside a bouffant hair-do. Not consistent with known spider behavior.
Do female black widows always kill and eat their mates? In most species that has never been seen in the wild, just in cages.
If spiders drink from mouths or eyes of sleeping humans, there is no physical or eyewitness evidence of it.
Do you swallow live spiders in your sleep? There's no evidence of it — no specimens, no eyewitness accounts, nothing!
The recent idea that spiders "hold their breaths" to escape pesticide is not supported by research. The lung slits can't close completely.
A worldwide 2012 news report claimed "swarms" of deadly spiders suddenly invaded an Indian village. The scare started with 2 snake bites.
A 2001 media blitz about hordes of giant, rare, venomous spiders under Windsor Castle (England) derived from a common, harmless cave spider.
A 1999 internet hoax claimed a deadly exotic spider lurks under toilet seats in planes and around airports; everything in the story is fake.
Urban legend alleging that hatching tarantula eggs made a potted cactus plant explode, has no basis in fact or tarantula biology.
Tall tales alleging that "camel spiders" (which aren't spiders) have super-powers and do horrible things to men and camels are all phoney.
The well-known structure and behavior of solpugids (sometimes called "camel spiders") makes their alleged human-flesh consumption absurd.