Physical differences?

[Faing]

What are the major physical differences between B boehmei and A bicoloratum? The Brachypelma I'm familiar with but I just had a chance to glimpse upon an A bicoloratum (not in too much detail) and I noticed they were similar. Or maybe it was the lighting...

Anyway, it has become of interest to me something I haven't discovered yet.

If this is on a another thread someone let me know please. Thanks!

 

[Endagr8]

http://www.arachnoboards.com/ab/showthread.php?t=149888
http://www.arachnoboards.com/ab/showthread.php?t=5092

 

[the_mask86]

its quite similar. to the untrained eye its hard to differentiate.

took me a couple of years worth of staring to be able to see the difference in the carapace. the color's a little different too, likely in the range of 2-3 stops.