A spermatophylax is a gelatinous bolus which some male insects eject during copulation with females through their aedeagi together with spermatophores, and which functions as a nutritive supplement for the female.
See also
References
- K. Vahed (1998), "The function of nuptial feeding in insects: review of empirical studies" (PDF), Biological Reviews, 73: 43–78, doi:10.1111/j.1469-185X.1997.tb00025.x, S2CID 86644963, archived from the original (PDF) on 2012-03-11
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