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Dynastes hercules (page 5)

Further photos of the emergence sequence of a male D. hercules.  Photos courtesy of J. Lai.

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The elytra are now fully straightened.  The membranous flight wings are still in the process of being expanded to their final shape, and can be seen as a reddish-pink structure at the back of the abdomen.
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Dynastes hercules (male) freshly emerged - Image  J. Lai

 
Dynastes hercules (male) freshly emerged - Image  J. Lai
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The thin, cellophane-like flight wings are now almost fully straightened, and are lying flat across the top of the abdomen.
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The elytra are now slowly beginning to darken.
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Dynastes hercules (male) freshly emerged - Image  J. Lai

 
Dynastes hercules (male) freshly emerged - Image  J. Lai
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The flight wings have now been tucked into position underneath the elytra, and the elytra have darkened further.  The dark patches on the moistened paper towel are caused by a fluid which is released when the insect emerges from the pupal skin.
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The beetle is now essentially in its final form, and the elytra have darkened and hardened considerably.  However, it will still take some time (possibly 3 weeks or more) for the insect's armor to reach maximum hardness and final coloration.
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Dynastes hercules (male) recently emerged - Image  J. Lai

 
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