Most venomous tarantula?

[Johnn]

I've heard the Indian ornamental is nasty and the orange Baboon. Heard the lanpripelma nigerrimum is up there. I also know the king Baboon gets bigger than the orange Baboon and is highly venomous but what's the worst of all of these? Also, what's worse, an obt or a king Baboon? Most importantly though, what's the most venomous tarantula? And if possible a source would be awesome thank you

And that's lanpripelma nigerrimum btw

 

[viper69]

I've heard the Indian ornamental is nasty and the orange Baboon. Heard the lanpripelma nigerrimum is up there. I also know the king Baboon gets bigger than the orange Baboon and is highly venomous but what's the worst of all of these? Also, what's worse, an obt or a king Baboon? Most importantly though, what's the most venomous tarantula? And if possible a source would be awesome thank you

If you google the medical literature you can find this sorta, Poki and I believe the other are both in the same paper.

 

[EpicEpic]

Common names

LOL

 

[RezonantVoid]

Im personally one to believe the most potent OW's probably come from Australasia. In the case of the species here in Aus, there's alot less bite reports available than other foreign OW's since the species here are only available to the people here, and not globally bred and sold. Admittedly I haven't done much research into the venom of our native T's, but the general consensus seems to be that symptoms include extreme pain, muscular cramps, breathing problems, intense nausea and vomiting for several days depending on how severe the envenomation is. I also read from one site that allegedly, the genus Selenotypus was thought to contain the strongest insecticidal peptides in it's venom of any known spider group. No concrete proof to back that up, but thought it was worth mentioning. At the very least, they pack an incredible punch for their relatively small size.

 

[PanzoN88]

I don't know if it's true, but I think I read somewhere that most venomous is either C. olivaceum or H. villosella (can't remember which one). Maybe I dreamed about it, I seriously can't remember.

 

[Crazyarachnoguy]

I don’t have much knowledge regarding this but I would say Poecilotheria genus

 

[Smotzer]

I dont think it has been studied extensively or compared to others but based off subfamily the venom of Stromatopelminae is generally considered some of the worst. Im by far no toxinologist but if I had to place a bet it would be on that subfamily over Eumenophorinae. I know the latter is a much bigger subfamily and Pelinobius is only one genus out of those, but Id still say Stromatopelminae (those bites are nasty!!). I think the most widely know and studied is Poecilotheria though, but that just means its been studied more. Venom toxicity for tarantulas is much less widely know through studies like it has been for snakes.

and @RezonantVoid I heard all that too regarding the Selenotypus peptides. And your right if like an LD50 was ever conducted for all the OW species you guys down there would probably take the prize.

and @viper69 i think this is the study you are refereing to https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4470046/

 

[DaveM]

This is a complicated question that won't have a one-dimensional answer.
What's most painful? What causes the longest-lasting effects? With increasing doses (beyond what any tarantula is likely to deliver), what venom would kill a human first? Are some venoms more likely than others to cause dangerous allergic reactions / anaphylactic shock in sensitive people? Do some venoms cause permanent nerve damage, or necrotic lesions that will leave bad scars? Do some venoms cause confusion and hallucinations, as reported with P. muticus, which could potentially prevent an envenomated person from reaching help if he were alone? Are some venoms relatively benign in most people, but deadly to those with preexisting heart conditions, or asthma, or kidney disease, or COVID-19?
I don't know these answers and suspect them to be unknown, but it won't be as simple as saying one species is more venomous than another. The venoms are really cocktails of many bioactive toxins, that change proportions as the spider matures, and are sometimes different between males and females.
All this said, I vote for some Australian species. I hypothesize that the toxicity of endemic fauna is proportional to the perceived friendliness of the endemic people!

 

[mack1855]

Don't get bit. .

 

[basin79]

It's always the same answer. The one that bites you.

 

[Teds ts and Inverts]

Cyriopagopus doriae supposedly has VERY potent venom.

 

[basin79]

Cyriopagopus doriae supposedly has VERY potent venom.

If you're a cricket, deadly.

 

[The Grym Reaper]

S. calceatum is regularly touted as the most venomous species.

If the rumours about C. doriae stopping some dude's heart several times are true then they're definitely up there.

 

[Vanessa]

There have been studies done, although not very recently. I would attach the scientific paper, but I am not allowed to due to the fact that it is not open source and had to be purchased. I will attach the illustration included in that paper, that I put together when someone brought up that there was no information comparing new world versus old world venom severity. The title of the paper it came from is "Tarantulas: eight legged pharmacists and combinatorial chemists" by Pierre Escoubas, Lachlan Rash - France 2004.
Also, you can take a look at the Tale of the Stromatopelma calceatum Bite.

 

[Matt Man]

have their own name Stromatoxin which works on Potassium Gated Channels like Tetrodotoxin works on sodium Gated Channels. Nasty stuff. They say Pokiest bites are partially so strong because they can inject a large does of venom, so the potency is probably
not truly known. Much respect to Australia as well, they have all kinds of critters that will kill ya.

 

[Frogdaddy]

I've heard the Indian ornamental is nasty and the orange Baboon. Heard the lanpripelma nigerrimum is up there. I also know the king Baboon gets bigger than the orange Baboon and is highly venomous but what's the worst of all of these? Also, what's worse, an obt or a king Baboon? Most importantly though, what's the most venomous tarantula? And if possible a source would be awesome thank you

And that's lanpripelma nigerrimum btw

I'm sorry but I have to question the whole motive of the OP and how exactly this thread helps people keep tarantulas in captivity.
Is this not a thinly veiled effort by the OP to obtain the most venomous tarantula in order to attempt handling it? I hope I'm wrong, but let the record show.

Handling androctonus

Anyone like handling hots? Here's me handling one of my androctonus bicolors. I've held an a australis I believe and been stung. Just wondering if anyone else does the same

arachnoboards.com

 

[moricollins]

I'm sorry but I have to question the whole motive of the OP and how exactly this thread helps people keep tarantulas in captivity.
Is this not a thinly veiled effort by the OP to obtain the most venomous tarantula in order to attempt handling it? I hope I'm wrong, but let the record show.

Handling androctonus

Anyone like handling hots? Here's me handling one of my androctonus bicolors. I've held an a australis I believe and been stung. Just wondering if anyone else does the same

arachnoboards.com

You, sir, are most likely correct.

 

[Matt Man]

You, sir, are most likely correct.

I found that as well. He should go to Japan and do a Fugu tour

 

[lazarus]

There have been studies done, although not very recently. I would attach the scientific paper, but I am not allowed to due to the fact that it is not open source and had to be purchased. I will attach the illustration included in that paper, that I put together when someone brought up that there was no information comparing new world versus old world venom severity. The title of the paper it came from is "Tarantulas: eight legged pharmacists and combinatorial chemists" by Pierre Escoubas, Lachlan Rash - France 2004.
Also, you can take a look at the Tale of the Stromatopelma calceatum Bite.
View attachment 357625

Very nice study, I'm quite surprised that Avicularia species (urticans is now A. juruensis M1 I believe) and even B. boehmei have stronger venon than P. cambridgei.

 

[Johnn]

I'm sorry but I have to question the whole motive of the OP and how exactly this thread helps people keep tarantulas in captivity.
Is this not a thinly veiled effort by the OP to obtain the most venomous tarantula in order to attempt handling it? I hope I'm wrong, but let the record show.

Handling androctonus

Anyone like handling hots? Here's me handling one of my androctonus bicolors. I've held an a australis I believe and been stung. Just wondering if anyone else does the same

arachnoboards.com

It has nothing to do with hañdling it. I rarely handle my androctonus and I've had venomous arachnids I've never held. It is to acquire the most venomous T though. I like venomous whether or not to handle. The majority of the time I just watch them though