When I was a kid in 1976-1980 in Germany, Armed Forces TV always played a 1960's-70's film where a guy is laying in bed. Someone on the floor above drills a hole in ceiling, drips some goo over him, then he gets killed by insects, possibly grasshoppers.
Does this ring a bell for anyone?
Sounds almost exactly like the locust killing in THE ABOMINABLE DR. PHIBES, except the victim was female. If that's not it it you saw a ripoff of that scene.