Salix cinerea, Loon op Zand: larva dorsal
head and thorax, dorsal
larva, ventral; the dark line is the ventral nerve chord, that consists of a string of nodes, “ganglions”, one per segment, connected by two fine strands.
a single ganglion
See Grandi (1931a, 1933a) and Gustafsson & van Nieukerken (1990a) for a description of the larva.