IV PREFACE. 



aud such localities as are placed in brackets ; iii cousequence of the specimens 

 in the Collection l)eing imperfectly, or not at all, ticketed with their localities, 

 time would not allow him to determine more than a verj- few of the unnamed 

 species, hut in such cases he has inserted the names in brackets. 



The unnamed species are indicated as spaced out in the Collection by 

 j\Ir. Hewitson ; but some of the series of undermentioned Lijcnniida', Hesper'uhr, 

 itc, obviously include distinct species, which he would, doubtless, have separated 

 when he came to examine them more closely. 



It may be added that the Collection is very carefully named, allowance 

 being made for ]\Ir. Hewitson's views on variation ; but the locality labels 

 apjDear to be incorrect in a few instances. 



Apart from the very fine condition of all the specimens, and the rarity 

 of many of the species contained in this Collection, its scientific value is 

 greatly increased by the large number of types which it includes, there being 

 among them, in addition to the many hundreds of species described by 

 Mr. Hewitson himself, those of many species described by Messrs. Wallace, 

 Moore, and others. 



Jmi,' I, 1879. 



