Male beetles can also vary in the females they choose to mate with. Males are extremely selective in their mate choice. They prefer to mate with mature, virgin females. If a male mates with a virgin female, his sperm has an extremely high chance to fertilize the female if another male does not mate with her. Males are able to differentiate between virgin females and non-virgin females through scent; the wax-like secretions of competitor males could be found on the reproductive glands of non-virgin females, but not on virgin females. Males that possess an increase in the number of odor receptors are better able to choose which females to reproduce with and subsequently, increase their fitness. Some males possess better suited characteristics to detect the maturity and reproductive status of the female, and as such, will preferentially breed with only those females that will have the highest production of offspring. Likewise, males that deposit stronger scents will have an indirect fitness advantage due to their odor deterring other potential mates from an already inseminated female.
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