Fig. 1. (A) Plan view of the arena. Areas marked grey or surrounded by dashed lines are close to patterns at the feeder and nest ends of the arena and are those within which hovering times were measured. Holes at the feeder and nest ends of the box were 3 cm in diameter. They were placed at a height of 22 cm from the floor and were separated horizontally by 25 cm. (B) The different patterns to which the bees were trained. B, blue; Y, yellow.