This collection of articles will be devoted to comprehensive taxonomic revisions and/or compilation of regional checklists of microgastrine wasps. Emphasis willl be placed on turbo taxonomy approaches to speed up species description, or cataloguing of species for specific regions of the planet. Extensive use of DNA barcoding data will also be encouraged. This collection will build upon the foundation provided by a recent paper on the topic published in ZooKeys in 2020 (https://zookeys.pensoft.net/article/39128/).