Figure 5 | Scientific Reports

Figure 5

From: Comprehensive comparative morphology and developmental staging of final instar larvae toward metamorphosis in the insect order Odonata

Figure 5

Morphological changes of the compound eyes during F−0 instar in Aeshnidae and Libellulidae larvae. (A–X) Dorsal views of the heads. All scale bars show 2 mm. Species and family names are provided on the left side. The number shown on the lower left of each image indicates the number of days after ecdysis to F−0 instar. Black arrowheads indicate the progression of the apolysis-like phenomenon in the compound eyes. White arrowheads indicate the newly formed regions of the compound eyes. (I–L, and Q–T) Schematic illustration of changes in shape and size of compound eyes. (I–L) or (Q–T) correspond to (E–H) or (M–P), respectively. (A, M, U) The first day of stage 1. (E, I, O, S, W) The first day of stage 2. (H, L, P, T, X) The first day of stage 3. (N, R) First day when the newly formed regions appeared. (Y) Schematic diagrams on the timing of the morphological changes during F−0 larval instar. (Z) Magnified view of the newly formed region in (O).

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