Mosquito

“Millions Of Years Of Evolution Have Just Become Mankind's Worst Nightmare.”

An alien starship has come down in a swamp in a U.S. National Park, and the mosquitos that feed on its dead occupants start growing to the size of vultures. Gary Jones puts Earl (Gunnar Hansen) and Hendricks (Ron Asheton) among the people the park's visitors can't tell apart from the dead. The survivors have a swamp and a few buzzing hours to find a way out before they are fed on.