Fr ef ace. 



Six years have elapsed since the publication of my "Syno- 

 nymic Catalogue of Diurnal Lepidoptera"; and I have the 

 satisfaction to believe that it has been found useful to Ento- 

 mologists. The present Supplement is brought down to June, 

 1877, and includes all new species described since 1871; all 

 fresh figures or descriptions of importance; and all omissions 

 which I have been able to discover. 



The new species are arranged in alphabetical order, 

 no other arrangement being suitable for a Supplement, and a 

 full Index has been added. The Supplement is paged, and 

 the new species are numbered consecutively with the original 

 work, for convenience of binding and reference. 



I have not seen reason to modify my views on nomen- 

 clature, further than that I now consider the 10**^ edition of 

 Linne's "Systema Nature", (1758) and not the 12t^ (1767) as 

 the only tenable starting point. This is carried out in the 

 Supplement, but does not affect the synonymy to any appre- 

 ciable extent. 



Very numerous rearrangements, and corrections of syno- 

 nymy (often contradictory) have lately been published, or sug- 

 gested to me privately. The former could not be introduced 

 in a Supplement, and I have only attempted to give a few of 

 the latter. The generic synonymy has been left nearly unal- 

 tered from that of the original Catalogue and its Appendix; 

 hence but fcAv of the new genera proposed since its publication 

 will be found in this Supplement. 



Should circomstances permit, I hope to be able at some 

 future time to issue a general Catologue of Moths, and also 

 a compendium of the systematic bibliography of the Order 

 Lepidoptera down to the commencement of the Zoological 



