INSTRUCTIONS IN LEPIDOPTERA. 25 



How to arrange Le\ndopera in the Collection. 



It is customary to arrange the larger species in single rows, 

 and the smaller ones in double rows, and from four to six 

 specimens of each species forms a good working collection ; 

 there are few who can afford cabinet-room for longer series. 

 A list of names printed on one side only (such as Doubleday's 

 List of the larger Lepidoptera and Tortricidae, and Stain- 

 ton's List of the Tineidas), should be obtained, and the names 

 cut out, the generic names being placed above the species 

 and the specific names below them. To name the Lepidop- 

 tera there is no better book yet extant than the first edition 

 of Wood's Index Entomologicus, which contains coloured 

 figures of all the British species known at that time : the 

 letter-press sold with the book is useless, but the figures 

 where recognizable are referred to in the British Museum 

 Catalogue of British Lepidoptera, which was commenced by 

 the late Mr. Stephens and concluded by myself. 



