Zelostemma thorpei is a species of parasitoid wasp belonging to the family Platygastridae.

The species was identified by Danish entomologist Peter Neerup Buhl in 2017, during a review of the genus Zelostemma during which Buhl identified 30 new species from New Zealand entomology collections based on morphological differences.

[2] Z. thorpei was identified based on specimens collected from Huia, West Auckland in December 1980 by P. A. Maddison and B. M.

[2] Females of Z. thorpei have a body length of 1.5 mm (0.059 in), and light brown legs and coxae.

[3] As of 2024, specimens have only being identified in the vicinity of Huia and the Manukau Harbour in the Auckland Region.