Grammostola rosea and Grammostola porteri.

[advan]

Loose translation of the Grammostola rosea description. Yes, this is all of it.

6.Mygale Rose. (Mygale rosea)

Very hairy abdomen and thorax covered with soft red hairs pulling the femoral shiny pink topped with two hooks.
New world- South America-Chile-collection of Mr. Gnerin. Sent by Mr. Annee.
This species is close to A. versicolor, as she differs mainly by the semi color the thorax to that of the abdomen.

Now, how can anyone say for sure what they have is G. rosea? Lee is absolutely correct, these are just hobby names for now.

You should keep the color "forms" separate until something definitive comes out saying otherwise.

 

[LordWaffle]

http://www.tarantulaforum.com/threads/comparison-of-g-rosea-g-porteri-stridulatory-organs.262/

Thanks! Good read.

 

[Galapoheros]

Polymorphism exists within some species too, sometimes depending on locality, so small differences in morphological differences aren't dependable in IDing. I think it would come down to breeding experiments and DNA studies. It seems like it's at the point of no fine line with the species imo.

 

[OrganicTorus]

I have a few questions about how this topic relates to care:

I might be getting my first tarantula from a woman who's son went to college and left her with the spider. She called it a rosehair tarantula, and I doubt she still has any info from the breeder or store, as she's had it for 8 years. I'm not planning on breeding it so I don't need definitive ID. I just want to make sure I give it the best care possible.

Everywhere I see descriptions of how to care for G. rosea, it looks pretty easy, but should I be concerned that if this spider is a closely related species it will have significantly different needs?

She said the spider doesn't move or come out of its hide as much as it used to. Is this normal as the tarantula ages, or does it indicate it might need an adjustment in its environment?

I love taxonomy, so I'm very interested in how this shakes out, but for now I'm more concerned about giving this spider a good home.

 

[cold blood]

I have a few questions about how this topic relates to care:

It doesnt....while there may be several species referred to as "rose hairs"....care for each is EXACTLY the same....bone dry with a water dish.

 

[Arachnid Addicted]

I've been talking about this issue a lot in the last few years but, I'll say it again.

First of all, and most important, I guess, if you got your individuals as G. rosea NCF and G. rosea RCF you should never, ever, paired them.

That said, G. porteri was once known as G. rosea NCF before. I dont actually know why, when or how people started to called them G. porteri (I have an idea, tbh, but this idea doesnt matter cause it doesnt concern this discussion).

Thing is, although G. porteri is a valid species scientifically speaking, chilean researchers didnt found its holotype yet, some of them even believe the species will turn out to be Nomen dubium.

This means no one, as far as I know, know how the real G. porteri actually looks like and there are some people (me included) that believes that the real G. porteri never were in the hobby.

Back to the hobby, the question remains: then, what G. rosea NCF/G. porteri really is? The answer is, no one also known for sure, it could be G. rosea or G. porteri, indeed. It could be another species, or even a new one, who knows? Lol. When it comes to Grammostola, everything is possible. Lol.

One last thing, the "article" that was spread in the hobby as "scientifical", comparing one taxonomical character of them is not valid scientifically, as stated in the article itself and could not be used as an absolutely truth to tell them apart. Forgive me, I forger which character was examined.

Only fact is, in the hobby, we can continuously call it G. porteri or G. rosea NCF, this discussion will still go on from time to time until a revision article came up.