ADVERTISEMENT. 
Tue donation made to the University of Oxford by the late Rey. F. W. Hops, of his 
entire Collections and Library of Natural History, and the subsequent acquisition of the 
Burchell, Wells, and other Collections, including also my own, have enriched the Univer- 
sity Museum with a large number of new and rare species of Insects, from which it has 
been considered advisable that a selection should be made for illustration in a manner 
worthy both of the donor and the University. 
In making this selection I have considered that it would be most beneficial to illus- 
trate certain Groups or Families rather than isolated Species. 
With this view the Groups of Goliathidee and Cremastocheilidee have been selected ; 
a complete Monograph of the latter being given, with figures of upwards of one hundred 
Species. Of the singular Family Paussidze upwards of fifty Species are figured for the 
first time, together with many other curious Coleoptera. Many remarkable Groups and 
Species belonging to the Orders Hymenoptera, Orthoptera, Neuroptera, Hemiptera, and 
Lepidoptera, as well as several singular Apterous Groups, are also given. 
The Plates are engraved and coloured from drawings and dissections prepared by 
myself. 
I have considered it due to the memory of Mr. Hors to reprint the late Dr. Prrt- 
crews Biographical Notice of him, together with a concise account of the Collections 
presented by him to the University of Oxford, and a list of his published Works and 
Memoirs. 
J. O. WESTWOOD. 
OxrorD, October, 1873. 
