The Alien Factor (1976)
The Alien Factor is a 1976 B-grade science fiction film directed and written by Baltimore low-budget filmmaker Don Dohler. The film begins with a young teenage couple making out in a car when an insect looking monster attacks. The local sheriff must find out what's causing the killings. Meanwhile, the mayor is breathing down his neck. The mayor wants to keep a lid on the deaths so a multi-million dollar amusement park will be built.
More at Wikipedia.