Crickets seem to be tasty good eats, for animals and willing humans, but not all insect species are edible.
A general rule of warning is when an insect displays patterns of red, orange, yellow or white spots/bands on black. These usually are visual signals meaning "I taste bad" or "I will sting you," Lemann said.
"Camouflage insects are trying to hide from vertebrates that want to eat them because, in many instances, they taste good,” he said. "Second if you look at cultures around the world that eat insects, you'll see that generally 'on the menu' are many types of grasshoppers and their kin, caterpillars and beetle larvae."