While I realize this would be a very ineffective propagation strategy, it could be an aberration that is occasionally observed in the same way that males are not always eaten.

Could males "pretend" to want to mate to allow them access to a female with the intent to eat her?

I could also see that the usual difference in size in favor of the female makes this literally never happen. But there is a species of waterbug in which the males threaten the females with noise that will attract predators unless the female mates so injuring the female is not unknown.

  • $\begingroup$ There is traumatic insemination in bedbugs but that is during mating, not after mating. $\endgroup$ – WYSIWYG Jun 7 '19 at 13:19

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