The red dwarf honey bee (Apis florea) is a species of small, wild honey bees in the family Apidae, genus Apis, subgenus Micrapis. It's found in southern and southeastern Asia. The honey of this species is considered the best and is very expensive as compare to the honey of other species, particularly domesticated honey bees. In our area the population of Apis florea have been decreased by about 80 percent in the last 15 years. According to the local people this drastic decrease is due to domesticated honey bees, which pest on them. The other common reason which comes in my mind is the excessive spray of pesticides. Last year I observed only one nest, which you see in the last photo.
Red Dwarf Honey Bee-Apis florea
Red Dwarf Honey Bee Hive