A lot of scholars in Arab world call it haram but in certain areas like Bd, Indonesia people eat them... and their scholars think it is halal because of their misunderstanding of the word fish... Prawn, shrimps, crabs, lobsters, mussels, octopus, squids are not fish...not even science classifies them as fish... these are from phylum Mollusca
I used to eat shrimps but later I met good scholars and they guided me so I stopped since then
But Locust is halal and very clear hadeeth is there about it
It is haram bro... not makroo