What's The Names Of The Top 10 World's Poisonous Spiders?

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asked 3 years ago

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In no particular order, and can't really keep to just 10 species.  Depends where you live and what kind of creature you are how to rank them.

*  Brown recluse (kills more people than Black widow).
*  Black widow

Both are indigenous to much of the USA  Be very careful if moving dead wood around, or even just poking about in dark woody damp places!!

The black widow bites more people in the USA (and maybe in the world) than any other, but its bites are rarely fatal (but then again, they sometimes are fatal).

The spiders with the most potent venom is the

* Brazilian wandering spider (Phoneutria nigriventer)

but it's not especially dangerous to people.

Quite dangerous to people,

* Mouse spiders (8 species, Australia)

* Funnel web spiders (40 species, Australia).  The Sydney one, Atrax robustus, gets cited as the spider of the world with the venom most dangerous to people.  It's only been blamed for 13 deaths ever, though.

*Spiders in the Genus Latrodectus, occur worldwide (black widow is one of these).

* Genus Loxosceles, brown recluse is one of these.

Hobo spiders, Banana spiders and Yellow Sac spiders also cause bites with nasty after-effects, but not fatal.

There's a few species of spiders in the USA called Daddy Long Legs; they have a reputation as highly venomous, but in fact, are not at all poisonous to people.

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Scavenger

answered 3 years ago

Just to clarify...Daddy Long Legs are not a species of spider. They are a member of the phylum arachnid but are seperated from spiders when grouped into subphylums. To be classified as a spider, the organism must contain 2 tagma (a head and cephalothorax), but the DLL only has one tagma. To reiterate...the DLL is NOT a spider.

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Entomology

commented 10 months ago

In regards to the comment above, you are correct about the Daddy Long Legs. The aren't true spiders, since they have only a single tagma. I've also observed them to have more than 8 legs, and eat vegetable matter. The proper name for this arachnids is the Harvestmen. However, it is worth noting that these little guys do share their nickname with the Pholcidae, or cellar spider, which is an actual, venomous, but completely harmless, spider. (http://en.wikipedia.org/wiki/Pholcidae)

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