"The 'Regal' bee is held as a sovereign of apiculture, rooted in the origin of the species itself."
The Regal Bee is a Tier 3 species found by cross-breeding.
It's one of the first bee species the player encounters that has a usable item as it's special produce, and arguable one of the most important usable items for beekeeping - Royal Jelly.
These are the different Traits that the Regal Bee can spawn with.
When a trait has multiple values one is picked randomly when the bee is created.
Lifespan Long, Ancient
Productivity Normal, Fast
Fertility Unlucky, Fertile
Stability Stable, Ordered
The Apiarist's Almanac gives the following hint:
This snobbish species has ancestry in the Floreo and Clarus families and can only be bred near Goldenrod flowers..
When asking Dr Beenjamin BhD for a hint he says the following:
Verdant-Vibrant Queens can produce Regal offspring, but they need Goldenrod flowers nearby. Anyone could tell you that!
When Cross-Breeding the Regal Bee with the following other species there is a chance for the offspring to mutate into a new species!
As with all mutations, the offspring of the hybrid queen needs to also be a hybrid, so this can effect the chances listed below.