https://pmc.ncbi.nlm.nih.gov/articles/PMC4888289/
Sperm removal during copulation confirmed in the oldest extant damselfly, Hemiphlebia mirabilis -...
Postcopulatory sexual selection may favour mechanisms to reduce sperm competition, like physical sperm removal by males. To investigate the origin of sperm...
in thehemiphlebia mirabilisspermremovalcopulation