Figures 2.12

Figures 2.12. Mouthparts of the cabbage white or cabbage butterfly, Pieris rapae (Lepidoptera: Pieridae).
(a) Positions of the proboscis showing, from left to right, at rest, with proximal region uncoiling, with distal region uncoiling, and fully extended with tip in two of many possible different positions due to flexing at «knee bend». (b) Lateral view of proboscis musculature. (c) Transverse section of the proboscis in the proximal region. (After Eastham & Eassa 1955)