Molt

... which makes another mating hard to accomplish (they'll still try, though). I'm pretty sure that, unlike insects, long-lived spiders continue to molt even as adults (I didn't look this up, so I may be wrong), so it seems like the males would regenerate the palps.

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... have incomplete metamorphosis: young centipedes hatch from eggs and look like small adults. Centipedes shed their skin (a process called "molting") as they grow into adults, usually adding legs each time they molt.

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... (giving a pretty decent advantage to those adults, and somewhat isolating them reproductively). They would need to be able, in the next-to-last molt, to be able to become functional, winged, reproductive adults. If this type of life cycle is successful enough, evolutionary pressures now exist ...

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... (giving a pretty decent advantage to those adults, and somewhat isolating them reproductively). They would need to be able, in the next-to-last molt, to be able to become functional, winged, reproductive adults. If this type of life cycle is successful enough, evolutionary pressures now exist ...

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Some Advantages: Limited water loss or gain, protects guts, allows for some colonization of land (insects) Disads: has to molt to grow, thus leaving the animal vulnerable for a time, Limited growth, heavier covering (which could also be an advantage). That is off the top of the head ...

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