In Verslag van de 31ste Wintervergadering der Nederlandsche Entomologische Vereeniging, te's-Gravenhage op 23 Januari 1898

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