[4] The Carniolan honey bee is a subspecies of the Western honey bee, that has naturalised and adapted to the Kočevje (Gottschee) sub-region of Carniola (Slovenia), the southern part of the Austrian Alps, Dinarides region, southern Pannonian plain and the northern Balkans.
At present this subspecies is the second most popular among beekeepers (after the Italian bee).
These bees are particularly adept at adjusting worker population to nectar availability.
Carniolan honey bees are about the same size as the Italian honey bee, but they are physically distinguished by their generally dusky brown-grey color that is relieved by stripes of a subdued lighter brown color.
Furthermore, the Carniolan bee has a very long tongue (6.5 to 6.7 mm, which is very well adapted for clover), a very high elbow joint and very short hair.