Either using the obtained observations during the Wiki Bioblitz, or any of the other 1.2 million iNaturalist observations with an Wikimedia compatible license we explore best practices in sharing content between the two communities.
I made a simple user script for Commons that allows you to import iNaturalist images from within a Commons category or gallery page (whichever one is associated with the Wikidata item for the taxon). To use it, add the following to your common.js page:
Then clear your browser cache and go to a Commons category or gallery page (for example, https://commons.wikimedia.org/wiki/Category:Synemosyna_formica). If there's an "iNaturalist Import" button by the page title, you can click it and it will load all the free-license iNaturalist images for that taxon (up to a certain amount). Let me know what bugs you find (pun intended).