PLATE 1.13. QUEEN CERVIX, HEAD DETACHED

TOP RIGHT. Occipital foramen on the posterior of the head. This hole communicates with the cervix (neck), which in turn attaches to the prothorax. On each side of the foramen are the posterior tentorial pits, which extend to the posterior tentorial bridge within the head. Between pit and foramen is the lateral occipital sclerite with its rows of mechanoreceptive hairs. (x 66)

TOP LEFT. Close-up of the left posterior tentorial pit. At the extreme uppermost edge and below near the lower right edge of the pit are smaller depressions associated with the dorsal and ventral bridges. (x 198)

MIDDLE. Ventral aspect of the bilobed cervical membrane, which is covered with short cuticular spines. ( x 540)

BOTTOM. Close-up of these cuticular spines on the bilobed portion of the cervix. Up to 20 blunt, short, fingerlike processes may emanate from each scale at its distal end. (x 5,400)