ok, how about this one?
Some town in the west or something. Basically these like giant ant hills start showing up, and the ants fucking eat people. Like in one seen a kid stands on one of them then starts slowly sinking in as ants start crawling under his skin. Later on this cop starts shooting his leg to try and get them off of him, misses and fucking blows a gas line or something. They find this kills some of the ants
then in the climax they go hunting for the queen with a flamethrower. this heli pilot drops them into this field where they get overun. the pilot who was just chilling in the chopper on the ground notices ants eating him and shit and takes off and flies into a cliff
it has fucking haunted me for years since I saw it when I was 5 (terrified me) what movie was it?