Metamynoglenes helicoides is a species of sheet weaver spider endemic to New Zealand.
This species was described in 1979 by A.D Blest from a female specimen. In 2002, the male was described. The holotype is stored in Te Papa Museum under registration number AS.000037.
The female is recorded at 2.8mm in length whereas the male is 2.63mm. The female has a pale yellow cephalothorax and legs. The abdomen is pale grey. The male has a light brown prosoma, pale brown legs and a dark grey abdomen.
This species is only known from the North Island of New Zealand.
Under the New Zealand Threat Classification System, this species is listed as "Not Threatened".