TOP RIGHT. Worker compound eye, lateral view. The eye is surrounded by the short-haired gena (cheek). The dense, coarse, long interfacetal hairs of the eyes are apparent. (x31)

MIDDLE RIGHT. Queen compound eye, lateral view. Compare with the top right micrograph. (x31)

BOTTOM RIGHT. Drone compound eye, lateral view. This and the other views of the eyes show a sizable visual field, which is greatest in the drone. The drone bee can see forward, to the side, downward, upward, and to some extent rearward. (x 31)

TOP LEFT. Worker, vertex of head. The antennae are visible (bottom of the field) but most of the other structures are obscured by hairs. In the upper center, the circular outlines of the two lateral ocelli (but not the median ocellus) are barely visible. (x 31)

MIDDLE LEFT. Queen, vertex of head. Compare with the top left micrograph. The ocelli are obscured by hairs. (x 31)

BOTTOM LEFT. Drone, vertex of head. The two rounded eminences (top of thefield) are the dorsal sectors of the compound eyes, which are contiguous in this region. In the lower center of the field are the three ocelli (one is almost completely covered with hairs). These are located down on the face of the drone rather than in the dorsoanterior portion of the head as in the queen and worker. The dorsal bonding of the compound eyes has apparently displaced the ocelli. (x 31)