Caucasian honey bee

The Caucasian honey bee ("Apis mellifera caucasia", commonly misspelled "caucasica") is a subspecies of the western honey bee.
Origin.
The Caucasian honey bee originates from the high valleys of the Central Caucasus. Georgia is the “central homeland” for the subspecies, although the bees also can be found in eastern Turkey, Armenia and Azerbaijan.
Behavior.
Not beneficial for beekeeping.
In Turkey, beekeepers purposefully bring hives of "Apis mellifera caucasia" to areas of dense "Rhododendron ponticum" blooms to purposefully sequester grayanotoxin laden honey called "mad honey." This coveted novelty honey is referred to as "deli bal" and is neurotoxic. These bees are also less susceptible than "Apis m. mellifera" to acute exposure to Imidacloprid, a neurotoxic pesticide. 
Worldwide distribution.
The Caucasian (Georgian) honeybee has a long history of importance to beekeeping worldwide. The bees were first introduced in the United States in the 19th century. The Caucasian honey bee was a subspecies that came to have enduring interest to U.S. beekeepers. Frank Benton (1852–1919) visited Georgia in 1905 and supported the import of honeybees to the United States.
The Russian revolution and consequent annexation of Georgia by the Red Army in 1921 halted the export of Caucasian honey bees. Subspecies were studied and cultivated primarily by Soviet entomologists. Soviet officials were concerned about preserving the purity of the Caucasian subspecies and outlawed any export without special permission.
International exports were continued from 1969. According to a UK newspaper "GOLDEN BEE the grey mountain bee of the Soviet Union has been judged the best in the world and awarded a gold medal. The grey Caucasian bee is distinguished for its industry and it collects honey, even when it is raining. Many foreign beemasters have requested for the Golden bee and as many as 200,000 have been sent to Europe, Asia and America this year." ("Sunday Mirror" June 1, 1969) 
International awards.
The Caucasian honey bee received three gold medals at the international events – at the International Exhibition of Gardening in Erfurt (Germany) in 1961; at the 20th APIMONDIA International Congress in Bucharest (Romania) in 1965; and at the 23rd APIMONDIA International Congress in Moscow in 1971.
Sources.
"The Hive and the Honeybee" Chapter 11 "Races of bees" by Prof. Friedrich Ruttner, published by Dadant, 1975