Manuel Peñero and Pablo Librado set out to show how their European ancestors ate land arthropods. Owen Lewis has got to the core of it: they quit.
At least they quit in "Northern Eurasia". These are the ancestors of us Indo-Europeans on the one side; and the Huns, Manchus, Turks, and Mongols on the other. We can certainly add the Koreans and Japanese to this.
Our ancestors could eat ze bugs - chitin at all - and the Neanders assuredly did. Until 7000 BC, the two authors (through Lewis) say; at that point we lost the ability to process chitin, a enzyme-family called chitinase. So small shellfish were still possible if we just peeled the shell off (I suspect some of these have been aquacultured in prehistory). Note that some coastal populations simply imposed a taboo against the last, although even some of these could be talked into munching a cricket or locust.
I don't know if larvae have chitin (I think little). Either-way some Neolithic populations did attract larvae to eat, infamously the Sardinians (early Levantine farmers) with their cheese.
Anyway as the Neolithic trundled along, I expect that insects attracted some taboos of their own, because people who lived near insects got malaria, and breads and puddings (and beer) were getting less expensive. A family that couldn't eat chitin would naturally have zero reason to live anywhere near ze bugs.
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