During the testrun of a newly designed diffuser this little fly suddenly appeared low on above the ground on a Ivy leaf. It’s yellow body contrasted nicely with the green leaf. It is a Chyromyidae fly from the genus Chyromya. All species in this group are currently very rare in the Netherlands.
This is a male C. femorella or C. flava. The status in the Netherlands of the latter is currently unclear and the characters to separate the two have not yet been established . Therefore a until this has been sorted out a species collection. A very nice new garden species!
References1 Nederlands Soortenregister
2 de Bree, E., Belgers, J. D. M., van der Weele, R., & Delfos, A. (2019). Vijf goudoogvliegjes nieuw voor de nederlandse fauna (Diptera: Chyromyidae). Nederlandse Faunistische Mededelingen, 2019(53), 135-142. https://edepot.wur.nl/532827