Cockroaches nibble on each other's wings after mating, study reveals 

Scientists who studied the wood‐feeding cockroach (Salganea taiwanensis) found both male and female consumed the other's wings after mating. https://www.dailymail.co.uk/sciencetech/article-9250715/Cockroaches-nibble-wings-mating-study-reveals.html?ns_mchannel=rss&ns_campaign=1490&ito=1490