INSTRUCTIONS IN LEPIDOPTERA. 
25 
How to arrange Lepidoptera 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 Tineidae), 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. 
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