The Montegnards of the Central Highlands in Vietnam would catch crickets, put them in a container which had a 2 inch strip of oil painted on the inside. The little guys would hang out inside the jar for about 24 hours. When dried they were munched as a tasty snack or used in rice meals. Grass hoppers are prepared in the same way but it is best to pull the legs off before the feast. This disguises the appearance and reduces the spew factor.
Ants are, for the most, part one of the best bug feasts.
The formic acid pretty much disappears when they are boiled. Black ants eaten raw have a semi sweet flavor. Sorta like crunchy raw sugar with legs. We use them to sweeten ephedra tea. Bees and wasps are OK eaten after a good boiling.