Figure 26

Series of conventional light microscopy images of P. dumerilii , 75 hpf (mid nectochaete) - late nectochaete. A-D: larvae at 75 hpf. A: Ventral view of larvae, anterior side left. B: Detail of the developing antennae (ant). C: Detail of the developing anterior dorsal cirrus (adc). D: Detail of the developing anal cirri and the forming midgut (mg) and proctodeum (proc). E, J and O: Dorsal view of larvae, anterior side left. The age is indicated in the lower left corner of each picture. The antennae (ant), anterior dorsal cirri (adc) and anal cirri (ac) increase in length. The lipid droplets (ld) get absorbed. F-I, K-N and P-S: Several details of larvae at 4 days, 5 days and 6 days respectively. Compare A, F, K and P: The adult eyes (ae) increase in size compared to previous stages. H, M, R: The jaw (j) is increasing in size and the primary tooth (1to) becomes well visible. I, N, S: The proctodeum (proc) forms a connection to the midgut (mg) at around 5 days. O: Food particles (fp) are clearly visible in the midgut (mg). The palpi (pl) are visible as circular structures. G, L, Q: The larval eyes are remaining. Scale bar in all images 20 μm. Further abbreviations see abbreviations list.