PLATE 1.37. QUEEN I- PETIOLE LATE PAL AND VENTRAL VIEWS

TOP LEFT Lateral view of the petiolar region, or "waist," the constricted area between the first and second abdominal segments. On the left is the "bump" of the propedeum (first abdominal tergal plate); on the right, across the narrow petiolar isthmus, is the second abdominal tergite. The 1, saddle" between the two segments is the membranous roof of the petiole pocket. ( x 6 1)

BOTTOM LEFT Close-up of the petiole. Immediately below and on the left is the first abdominal sternite. On the right is the second abdominal sternite. ( x 2 10)

TOP RIGHT Ventral view of the petiole. A membranous area divides the ringlike first abdominal sternite (left) from the cuticular ring that is the second abdominal sternite. (x 55)

BOTTOM RIGHT Petiolar region. On the right is the ringlike second abdominal sternite. Projecting leftward from that sternite is the wrinkled and flexible intersegmental membrane. (x 175)