Fig. 2 in Further Evidence for Pre-metamorphosis Larval Eye Reduction in the Holometabola (Insecta: Mecoptera: Panorpa vulgaris Imhoff & Labram, 1836).

Fig. 2: A–D: A: eye segment of a transversal section through the first puppal stage head of Panorpa vulgaris, upper half of the picture dorsal, lower half ventral; B: TEM overview of the area of the pigment spot from the same specimen; C: detailed TEM picture of a degrading rhabdomer; D: detailed TEM picture of a developing rhabdomer.