Microcostaphron parvus is an extinct species of wasp which existed in Spain during the early Cretaceous period. Only a single specimen is known, which was found near Peñacerrada-Urizaharra in the Basque Country.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0