IV INTRODUCTION. 



some time assiduously examining the plumules on the wings of the Diurnal Lepidoptera, 

 and have obtained evidence, which Mr. Watson proposes to publish, that will assist 

 in determining the sexes, as well as in testing the worth, of nearly allied species. 



I have to regret the publication of some species previously described by the 

 Felders, but this cannot be avoided when two entomologists are at work upon the 

 same subject at the same time. 



I hope to commence my fourth and last volume with the new year, and, if life 

 and health are given me, to bring it in another five years to a successful close. 



CORRECTIONS. 



Papilio Numicus is P. Caiguanabus of Poey, His. Nat. de la Cuba. 



Pieris Lseta may be called P. La^tissima, if the present name is objected 

 to from there being a Terias so called. 



Ithomia Janarilla is I. Agarista of Felder. 



Eresia Gyges is E. Frisia of Poey. 



Diadema Diagoras is Apatura Japonica of Felder, but must remain in the 

 genus in which I have placed it. 



Romaktosoma Cutteri, though so closely resembling the genus in which 

 it is placed, is, I believe, a Euryphene. 



Harma Hemeresia is N. G3milius of Doumet, " Revue et Mag. de 

 Zoologie, 1S59, PI. X." Our figures fortunately represent the two sexes. 



Adolias Imperator is A. Satrapes of Felder. 



Debis Marpessa will be more properly placed in the genus Taygetis. 



Mycalesis Lalassis is M. Samba of Moore. 



Ilypocista Haemonia ought to have three white pupils in the large 

 ocellus of the posterior wing. 



N.B. — An Index is given, by which the binder will be enabled to arrange the 

 Plates, as in the " Genera of Diurnal Lepidoptera." 



A second Index, alphabetically arranged, is given for the benefit of those who 

 will take the trouble to number the Plates (from 1 to 60) and the text (from 1 to 

 1 20), after the book has been arranged by the first Index. 



N.B. — On append un Index par lecpiel le relieur peut arranger les planches de 

 la memo maniere qu'en " Genera of Diurnal Lepidoptera." 



On append un second Index, arrange alphabe'tiquement, pour servir a ceux qui 

 veulent mettrc les nombres aux planches (1 a GO), et aussi au texte (1 a 120), apres 

 qu'on aura arrange le livrc par I'aide du premier Index. 



Oatlands, Walton-on -Thames, 

 Sept. 15, 18GG. 



