Hey there Echo Weaver!
I agree that the insect trilling sounds like a rattle snake! I’m a relatively new player but I still sometimes expect a rattle snake to pop out at me because of the ambience sounds.
I think a poison debuff would be a nice addition to the game, adding a little extra challenge but not too much.
There could be different variations of snakes throughout biomes and like bees, the player could hear them coming before they see them.
Snake on,
DaBearsBerries
#WeWantSnakes