Theraphosa spp. hybridization

[NajaNaja]

Hi all, I'm going to buy a T. stirmi.
The question I have for you is this:
how high are the chances that I will get some Theraphosa hybrids?
My worries comes from the fact that T. stirmi was found to be a proper species only since 2010, so I'm assuming that previously T.stirmi and T.blondi were paired together without any kind of distinction.
Can the two species actually be hybridated?

Obviously I'm not interested in hybriding, but on the contrary I'm trying to find as spider as pure as possible!

 

[Venom1080]

There is little to no hybridizing to me knowledge.

 

[EulersK]

Firstly, it's Theraphosa, not "Teraphosa"

Secondly, I haven't heard of a hybridization problem with that genus. T. blondi is much more difficult to properly care for than T. stirmi, regardless of how similar they look. Keepers who have a true T. blondi generally know for a fact they do because of A) the price, and B) the care level. Not to mention the relative difficulty of breeding both species. And finally, wild caught individuals are very, very common. All of that put together means that you'll likely get a pure blooded T. stirmi.

You may want to talk to @Chris LXXIX. He's another Italian native, he may be able to help out.

 

[Sarkhan42]

Firstly, it's Theraphosa, not "Teraphosa"

Secondly, I haven't heard of a hybridization problem with that genus. T. blondi is much more difficult to properly care for than T. stirmi, regardless of how similar they look. Keepers who have a true T. blondi generally know for a fact they do because of A) the price, and B) the care level. Not to mention the relative difficulty of breeding both species. And finally, wild caught individuals are very, very common. All of that put together means that you'll likely get a pure blooded T. stirmi.

You may want to talk to @Chris LXXIX. He's another Italian native, he may be able to help out.

Are you positive about the difficulty of care? Last I checked @AphonopelmaTX stated he hasn’t really observed a difference in care requirements, as well as a few other keepers. It was discussed in a thread a while ago, I’ll see if I can go dig for it.

 

[Venom1080]

Firstly, it's Theraphosa, not "Teraphosa"

Secondly, I haven't heard of a hybridization problem with that genus. T. blondi is much more difficult to properly care for than T. stirmi, regardless of how similar they look. Keepers who have a true T. blondi generally know for a fact they do because of A) the price, and B) the care level. Not to mention the relative difficulty of breeding both species. And finally, wild caught individuals are very, very common. All of that put together means that you'll likely get a pure blooded T. stirmi.

You may want to talk to @Chris LXXIX. He's another Italian native, he may be able to help out.

If so, that's big news to me.

From what I hear from people with first hand experience, they are no different.

 

[Sarkhan42]

http://arachnoboards.com/threads/is-true-blondi-really-worth-it.302714/

Found it! Figured it might’ve been this thread but wasn’t positive until now.

 

[AphonopelmaTX]

Keepers who have a true T. blondi generally know for a fact they do because of A) the price, and B) the care level. Not to mention the relative difficulty of breeding both species. And finally, wild caught individuals are very, very common. All of that put together means that you'll likely get a pure blooded T. stirmi.

I have two Theraphosa blondi boys and I know they are T. blondi because they key to that species. They were expensive yes, but not anymore difficult to raise and maintain than my T. stirmi and T. apophysis (boys and girls). T. apophysis being the easiest to maintain since they can tolerate drier conditions for longer than the other two.

I have never heard of or had a concern of hybrid T. blondi/ T. stirmi either. Anatomically they are so dang similar I wouldn't even know how one would tell a hybrid from a pure species anyway. Maybe a hybrid would have not so hairy knees, T. stirmi have bald knees, and T. blondi having hairy knees?

 

[EulersK]

If so, that's big news to me.

From what I hear from people with first hand experience, they are no different.

Might be, but the keepers I've been in contact with on this side of the country have trouble keeping the darn things alive. Couldn't say why, I've never had a T. blondi myself. From their account, it seems like T. blondi needs more specific ventilation requirements than T. stirmi. Again, though, secondhand experience.

 

[Ran]

Before stirmi were known to be stirmi, people tried to breed what they thought were female blondi and male blondi got courtship when both were the same species but not when one was the other species. Apophysis cannot interbreed as the males have tibial apophysis, blondi and stirmi males do not possess tibial apophysis.

 

[NajaNaja]

Thank you all for the replies and the correction.

So for what I'm understanding even if T. stirmi was "discovered" relatively recently the situation of the genus is not messed up, and following the identifications key I will be enough sure of the purity.

 

[Venom1080]

Might be, but the keepers I've been in contact with on this side of the country have trouble keeping the darn things alive. Couldn't say why, I've never had a T. blondi myself. From their account, it seems like T. blondi needs more specific ventilation requirements than T. stirmi. Again, though, secondhand experience.

Hmm, can't really say much myself as I've never raised them.

Perhaps something to do with the fact you lot live in a desert.

 

[Chris LXXIX]

You may want to talk to @Chris LXXIX. He's another Italian native, he may be able to help out.

Well, lately here there's plenty of Italian users, Eric (Bana) my friend. Besides, let the 'mask' crumble on the floor once and for all, I always cheated: I'm a Midwestern truck driver, actually. And Baseball is my fav. sport

 

[Andrea82]

Well, lately here there's plenty of Italian users, Eric (Bana) my friend. Besides, let the 'mask' crumble on the floor once and for all, I always cheated: I'm a Midwestern truck driver, actually. And Baseball is my fav. sport

I know the magic words to expose you, you US imposter!
Hokus pokus... Olive Garden makes real Italian food!
*runs for cover*

 

[Chris LXXIX]

I know the magic words to expose you, you US imposter!
Hokus pokus... Olive Garden makes real Italian food!
*runs for cover*

Well but everyone (educated enough, at least) in the U.S knows that 'Olive Garden' are posers. Btw since my wife is busy filling the divorce papers, lately I'm cheating with a Dutch beauty I've encountered in SW Ohio that prepare the best Hachée ever

'Baseball, Baseball!'

Hi all, I'm going to buy a T. stirmi.
The question I have for you is this:
how high are the chances that I will get some Theraphosa hybrids?
My worries comes from the fact that T. stirmi was found to be a proper species only since 2010, so I'm assuming that previously T.stirmi and T.blondi were paired together without any kind of distinction.
Can the two species actually be hybridated?

Obviously I'm not interested in hybriding, but on the contrary I'm trying to find as spider as pure as possible!

Non ho mai sentito di una roba del genere. Quello che spesso capita (non è comunque il tuo caso) è di 'comprare' (e quindi 'di pagare') una Theraphosa blondi e poi ritrovarsi con una Theraphosa stirmi.

Sotto questo aspetto il 'casino' era successo anni fa con il genus Hysterocrates, a un certo punto era diventato discretamente difficile identificare correttamente alcuni esemplari per via di una ibridazione dissennata negli anni.

 

[Exoskeleton Invertebrates]

None of the Theraphosa are hard to care for.

 

[Kieron2626123]

I have two Theraphosa blondi boys and I know they are T. blondi because they key to that species. They were expensive yes, but not anymore difficult to raise and maintain than my T. stirmi and T. apophysis (boys and girls). T. apophysis being the easiest to maintain since they can tolerate drier conditions for longer than the other two.

I have never heard of or had a concern of hybrid T. blondi/ T. stirmi either. Anatomically they are so dang similar I wouldn't even know how one would tell a hybrid from a pure species anyway. Maybe a hybrid would have not so hairy knees, T. stirmi have bald knees, and T. blondi having hairy knees?

 

[Kieron2626123]

Mine looks to be hybrid hairs on the patella but not as long as blondi

 

[Najakeeper]

I have kept all three species and if you can keep an enclosure humid and somewhat ventilated, keeping these guys thriving is not a challenge. Planted terrariums with two ventilation grills on each side worked very well but I have kept them in plastic bins without problems either. Just give them space and a nice, deep burrow to retreat to.

Being very interested in this genus, I have never seen hybrids.

 

[esa space station]

Hi all, I'm going to buy a T. stirmi.
The question I have for you is this:
how high are the chances that I will get some Theraphosa hybrids?
My worries comes from the fact that T. stirmi was found to be a proper species only since 2010, so I'm assuming that previously T.stirmi and T.blondi were paired together without any kind of distinction.
Can the two species actually be hybridated?

Obviously I'm not interested in hybriding, but on the contrary I'm trying to find as spider as pure as possible!

If it helps i can substantiate one of two things namely there are two phenotypes of t blondi(im based in uk)and source from german breeders and do know according to an established genetic line varying from breeder to breeder no two t blondi ever look the same! 1.1 pairs(brother&sister) is preffered but successfull method in most cases.

 

[Ultum4Spiderz]

Hi all, I'm going to buy a T. stirmi.
The question I have for you is this:
how high are the chances that I will get some Theraphosa hybrids?
My worries comes from the fact that T. stirmi was found to be a proper species only since 2010, so I'm assuming that previously T.stirmi and T.blondi were paired together without any kind of distinction.
Can the two species actually be hybridated?

Obviously I'm not interested in hybriding, but on the contrary I'm trying to find as spider as pure as possible!

I would say odds are slim to none ; these are hard to breed and both look much different. It’s more likely to happen in the wild probably.
Are they actually two species or just two color morphs of the same spider ? Different amount of hairs tho so maybe different species or sub species.
True T blondi were incredibly rare when I joined the hobby , not so today.

A rookie breeder could probably pull off the mistake but I doubt it.