PLATE 1.28. QUEEN FORELEG, CLOSE-UP

TOP LEFT. Survey of the basal portion of the leg. The segments (from left to right) are the basitarsus, tibia, and (projecting at a 45' angle to the tibia) the femur. The "beak" at the end of the tibia is the fibula. ( x 3 1)

MIDDLE LEFT. Basitarsus (left), which articulates with the tibia. The lobe on the tibia is the fibula, which closes over the haired notch for antenna cleaning. (x 120)

BOTTOM LEFT Antenna cleaner, or comb. This semicircular fringe of stiff hairs is located on the basitarsus at its junction with the tibia. The antenna is pulled past these hairs to remove debris. When the foreleg is flexed, the notch with hairs is overlaid by the short fibula, forming a cuticular circle that enables all sides of the antenna to be cleaned at once. ( x 384)

BOTTOM RIGHT Posterior portion of the femur-tibla Joint of the foreleg. (x 144) close-up of the cuticular relief and the short spurs that adorn the back of the femur-tibia joint (intersegmental membrane). A comparison of this field with the corresponding area in the bottom right micrograph shows the limited area over which this kind of cuticular ornamentation occurs. (x 168)