A first stab at investigating the Estonian fauna of gall midges (Diptera: Cecidomyiidae: Cecidomyiinae)

Abstract

Plant-feeding gall midges are reported from Estonia for the first time. A week-long field trip in August 2025 resulted in records of 45 species as new to the country. Adding reliable records of additional species from citizen science portals resulted in a first preliminary checklist of 70 species, two of which were identified to the genus level only. This is but a first stab at investigating the hitherto unknown gall midge fauna of Estonia.