Eerste supplement op de nieuwe naamlijst van Nederlandsche Diptera. [Erstes Supplement zum "Neuen Verzeichnisse der niederlandischen Dipteren".]'s Gravenhage

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith