Small Mexican terrestrials, mostly under four inches, and considerably more colorful than the Brachypelma they share a country with. B. cyaneifemur runs blue on the femurs. Several others carry red or gold tones.
Fossorial as juveniles, more surface active later, calm by Mexican tarantula standards, and slow growing in the way most arid Mexican species are.
Mexican export is closed, so everything in the trade descends from captive lines and prices stay firmer than the size warrants. The genus also keeps gaining described species, which means a fair amount of stock circulates under sp. designations that later resolve into named species. Buying an sp. form is a bet that the label eventually means something.