The Pyralidae described by Lederer in Wiener Ent. Monatschr. 7: 331-502 (1863) came mainly from the Imperial collections in Vienna and from the private collections of Zeller, Kaden and Felder. Of these, the Zeller and Felder collections are now in the British Museum (Natural History), but the Lederer types contained in them have not previously been segregated or marked. I have therefore systematically done this, marking holotypes or selecting lectotypes where this was necessary and suitable material is present. The species are listed below in the order in which Lederer gives them, with page references. Homalochroa aestivalis, p, 332. Lederer does not state the source of his mateiial.