Laetesia olvidada is a species of sheet weaver endemic to New Zealand.

[1] This species was described in 2003 by A.D. Blest and Cor Vink from male and female specimens.

[2] The holotype is stored in Te Papa Museum under registration number AS.000132.

[3] The male is recorded at 2.3mm in length whereas the female is 2.5mm.

This species has a dark brown prosoma, pale brown legs and dark abdomen with white markings dorsally.