What's the HEAVIEST Theraphosa?

[Sohki]

I was under the impression that T. blondi and T. stirmi weighed about the same... but a tarantula-selling company (who I believe to be reputable) wrote on their website that T. stirmi can weigh up to 8 oz and is therefore the heaviest tarantula in the world.

Since T. blondi, as I understand it, weighs up to 6.2 oz, this claim would be true... but I can't find any good sources to support this. I think I searched the internet for about an hour. I know blondi can reach 6 oz... but I can find absolutely NOTHING on the max weight of stirmi.

The only thing the internet tells me is that T. blondi and T. stirmi get to be about the same size and mass, but that doesn't necessarily mean they weigh the same. Was a chubby stirmi individual ever recorded as being 8 oz?

Does anyone here know?
Thanks!

 

[fq314]

I always thought it was the blondi, but I could be wrong I believe the blondi has the bigger legspan but not sure about weight

 

[Ultum4Spiderz]

I was under the impression that T. blondi and T. stirmi weighed about the same... but a tarantula-selling company (who I believe to be reputable) wrote on their website that T. stirmi can weigh up to 8 oz and is therefore the heaviest tarantula in the world.

Since T. blondi, as I understand it, weighs up to 6.2 oz, this claim would be true... but I can't find any good sources to support this. I think I searched the internet for about an hour. I know blondi can reach 6 oz... but I can find absolutely NOTHING on the max weight of stirmi.

The only thing the internet tells me is that T. blondi and T. stirmi get to be about the same size and mass, but that doesn't necessarily mean they weigh the same. Was a chubby stirmi individual ever recorded as being 8 oz?

Does anyone here know?
Thanks!

Someone here who ones one could corral a gravid female but I think it’s a tie. I don’t own any I’ve only had t stirmi
Once and I was sold and sick specimen it was 8-9”. Rob c had a big one once but he never weighed his t blondi .??
Blondi I thought reached 11”

 

[spideyspinneret78]

I read that by weight, T. stirmi is more massive but that T. blondi and T. apophysis have larger legspans. Unfortunately I cant remember where I found this, but I'll look and see if I can find a reputable source.

 

[Sohki]

I always thought it was the blondi, but I could be wrong I believe the blondi has the bigger legspan but not sure about weight

Yeah, same here. If one of them had to be heavier than the other, I assumed it would've been the blondi, so the info on the website surprised me. XD

 

[Ultum4Spiderz]

Yeah, same here. If one of them had to be heavier than the other, I assumed it would've been the blondi, so the info on the website surprised me. XD

we’ll if stirmi gets 8oz of weight it’s the heaviest..
T Blondi record verified

Largest spider in the world

www.guinnessworldrecords.com

 

[Sohki]

Someone here who ones one could corral a gravid female but I think it’s a tie. I don’t own any I’ve only had t stirmi
Once and I was sold and sick specimen it was 8-9”. Rob c had a big one once but he never weighed his t blondi .??
Blondi I thought reached 11”

I hope someone does that! I ought to buy them both and then weigh them, haha :3

I read that by weight, T. stirmi is more massive but that T. blondi and T. apophysis have larger legspans. Unfortunately I cant remember where I found this, but I'll look and see if I can find a reputable source.

Oooh, that's interesting! Thanks a lot--good luck in your search!

Well, Wikipedia isn't exactly "scholarly", but this is the closest thing to an answer that I can find:

"T. blondi is generally thought to be the heaviest tarantula, and T. apophysis has the greatest leg span."

Tarantula - Wikipedia

en.m.wikipedia.org

 

[cold blood]

stirmi

 

[Sohki]

stirmi

How do you figure?

 

[cold blood]

How do you figure?

its been the general consensus for over a decade

 

[Sohki]

its been the general consensus for over a decade

Oh, I see; that's very interesting. I've been part of the hobby for only a year, so I haven't heard that before! It'd be awesome if a professional, scientific study could be performed in order to confirm that stirmi's the heaviest, once and for all. That'd be cool! :3

 

[mack1855]

According to Gunniess World Records it was a T.blondi.6oz.Fwiw.

 

[The Spider House]

My gravid stirmi. She is a chunk!
IME (I have over 30 Theraphosa), weight is near as damn it a draw between stirmi and blondi but apophysis can actually have a slightly larger legspan but they are 'leggier' than stirmi/blondi and not as thick bodied.

Also attached is a pic from one of my gravid blondi from last mating.

Obviously if gravid, not a true test of weight but just thought would share these chunky lasses anyway

 

[spideyspinneret78]

My gravid stirmi. She is a chunk!
IME (I have over 30 Theraphosa), weight is near as damn it a draw between stirmi and blondi but apophysis can actually have a slightly larger legspan but they are 'leggier' than stirmi/blondi and not as thick bodied.

Also attached is a pic from one of my gravid blondi from last mating.

Obviously if gravid, not a true test of weight but just thought would share these chunky lasses anyway
View attachment 453555 View attachment 453556

I'm surprised that those butts don't have objects orbiting them. Massive!

 

[The Spider House]

I'm surprised that those butts don't have objects orbiting them. Massive!

Seeing as we are talking Butts, the planet has to be Uranus.