IV. 



ENTOMOLOGY. 1 



By J. O. Westwood, M.A., F.L.S., etc. 

 Hope Professor of Zoology in the University of Oxford. 



(Plates V.-IX.) 



The Collection of Insects formed by Mr. F. Oates, now in 

 the Entomological Department of the Museum of the 

 University of Oxford, although not of considerable extent, 

 fortunately comprises examples of many of the very pecu- 

 liar groups and genera characteristic of the greater part of 

 the African continent. 



The geographical distribution of animals has, during 

 the last few years, attracted so much attention among 

 naturalists that a few preliminary observations on the 

 subject will not be considered out of place. 



M. Lacordaire, in the chapter on the geographical dis- 

 tribution of insects, in his ' Introduction a l'Entomologie,' 

 divided the African continent into numerous regions, as 

 follows : — i. Upper Egypt, Nubia, and Abyssinia ; 2. The 



1 [Since this article was published in the first edition of this work, a number 

 of insects in the collection, not then particularized— chiefly amongst the Cole- 

 optera — have been named by Mr. A. Sidney Olliff, who has also described 

 several additional new species. A list of the Rhynchota has been furnished by 

 Mr. W. L. Distant (also including some new species), and some further addi- 

 tions have been made by Professor Westwood. The names of all insects added 

 by Mr. Olliff and Mr. Distant are distinguished from those named by Professor 

 Westwood by an asterisk (*) and the sign (f) respectively. It will further be 

 found in several instances that the names of genera printed in the first edition 

 have been altered in the ensuing pages, and in some cases specific names 

 also. Where the latter have been changed the names used in the earlier 

 edition have been given between brackets as synonyms. — Ed.] 



