Megafroneta gigas is a species of sheet weaver spider endemic to New Zealand.[1]
This species was described as Megafroneta gigas in 1979 by A.D Blest from a male specimen. The holotype is stored in Otago Museum.
This species is recorded at 7.5mm in length. This species has an orange brown cephalothorax and legs. The abdomen is dark grey with pale markings.
This species is only known from Lake Ohau in Otago, New Zealand.
Under the New Zealand Threat Classification System, this species is listed as "Data Deficient" with the qualifiers of "Data Poor: Size", "Data Poor: Trend" and "One Location".[2]