B. albopilosum , Nicaragua or Honduras...

[korg]

The first picture is from my "hobby form" B. albopilosum, what would be known as a Honduran variant. I've got two others with the same spermatheca shape. The second is of the Nicaraguan variant. Notice anything different? They are likely different species.

Very interesting stuff regarding the spermathecae shapes, and appreciate you and Aphono sharing! Just wanted to point out that there can be individual or regional level variations of spermatheca shape within the same species, though. One sometimes sees this in scientific species descriptions, where basically there is a small "range" of exactly how they can look. When I was checking out the recent Holothele longipes consolidation, for example, I noticed that there were quite a number of possible shapes! Just thought I'd point that out as well. Very interested to see how/if this differentiation develops further.

 

[The Grym Reaper]

They published an article about these two types of Brachypelma albopilosum in which they stated something along the lines of how the scientific name of the gold colored ones would be more accurate as Brachypelma aureopilosum. "Aureo" meaning gold while "albo" meaning white. There were no nomenclature changes in that article. It was just an overview of how there are two different "curly hair" species in the hobby, how they are different, where they come from, and so on.

Of course, poor choice of wording on my part, I did mean that aureopilosum (I butchered the name too, I read whatever I found it in ages ago) would be a more accurate name for them.