Nation Cicadas are related to shrimp – don’t eat them if you have a seafood allergy, FDA warns June 2, 2021Dustin Barnes, USA TODAYComments Off on Cicadas are related to shrimp – don’t eat them if you have a seafood allergy, FDA warns "Don't eat #cicadas if you're allergic to seafood as these insects share a family relation to shrimp and lobsters," the FDA shared on Twitter.