Mosquito came out in 1995 and is poised just between two major trends in the creature feature film the makeup effects and popcorn horror industry of the 1980s, which was dominated by Alien (1979) copies and low-budget cheesy efforts like Ghoulies (1985), and the rise of the low-budget CGI monster movie in the mid-to-late 1990s, following the success of Jurassic Park (1993).
As a result, Mosquito is a film entirely premised on the provision of creature effects every few minutes. These are played for a maximum degree of cheesy absurdity. The most preposterous of these is one where a couple are making out in a tent, the guy (Josh Becker) goes out to take a whizz while the girl (Margaret Gomoll) lies inside naked, enjoying it as a tentacle creeps up her leg before a giant-sized mosquito bursts in, slavering all over her and sucks the blood out of her butt. The makeup effects are entertainingly ludicrous, like where the mosquitos are seen sucking blood up into transparent sacs like pumping machines or are capable of reducing a victim to a withered husk in seconds while also causing their eyeballs to pop out. Of the effects, the full-sized animatronic mosquitos are not too bad, although the optical shots of the flying swarms are much less so.
Mosquito is a stupid film, albeit not unentertainingly so. It is filled with moronic characters the bullying ranger (John Reneaud), the park boss (Guy Sanville) and especially the two hick bank robbers that accompany Gunnar Hansen. There is little attention to script beyond the minimal case in point being where we see a spaceship crash on Earth in the prologue scenes and then everywhere else it is referred to as a meteorite.
The sole name that has any recognition factor in the film is Gunnar Hansen who played the original Leatherface in The Texas Chain Saw Massacre (1974). Hansen is okay, although there is an inevitable groan-worthy scene where he discovers a chainsaw in the cellar and revs it up saying Man, havent handled one of these babies in twenty years.