>The richer oxygenation of the Earth's atmosphere in a previous geological era favoured the development of very large insects. Some wingspans attained 70cm!
This makes me wonder: what did these insects taste like?
Notice that humans already eat several animals that are basically very large insects: shrimp/prawns, crabs, and lobsters. According to a quick google search, these crustaceans are basically a sister group to insects, and interestingly are more closely related to insects than spiders are.
However, humans generally don't think of insects as appetizing meals, to put it mildly, while lobsters are considered a delicacy, and shrimp, crabs, and other crustaceans are not only commonly eaten, but are somewhat expensive food items.
Of course, one of the big differences between insects and these crustaceans is the size: even small shrimp are very large compared to just about any insect, so most people generally don't eat the shell, but only the fleshy insides. This is even more true with lobsters, where the shell is very thick and hard and inedible. Doing this with a beetle or grasshopper isn't so easy.
So if prehistoric insects could be so large, did they resemble sea crustaceans more (as far as having thicker shells, and more easily-separated meat)? And would humans find them tasty if we could somehow resurrect these giant insects today?