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The (a) merus cuticle and (b) carapace cuticle are shown. Cuticle layers and their approximate thicknesses are noted on the left. There were no visible differences in cuticle morphology between the treatments (N = 111). The membranous layer of the cuticle was not visible. ep = epicuticle, ex = exocuticle, en = endocuticle. Scale bars = 20 μm.
