294 Mr. G. A. K. Marshall on 



for the opinions and considerations set forth in the sections 

 to the titles of which the initials " E. B. P." are appended (in 

 both the contents and the text). Mr. Marshall's numerous 

 and important contributions to these sections are always 

 acknowledged and placed between inverted commas. The 

 titles of Mr. Marshall's sections are indicated by the initials 

 " G. A. K. M.," and my contributions to these are always 

 placed between square brackets, and are furthermore 

 indicated by my initials. 



Colonel J. W. Yerbury has kindly contributed one section 

 and Colonel C. T. Bingham another, and both have given 

 much help in other parts of the work. Some of the most 

 strange and interesting insects were undescribed species, 

 and would have been comparatively valueless for the 

 purpose of this memoir, were it not for the kind assistance 

 of the naturalists who have written the Appendix. Dr. 

 F. A. Dixey kindly read the proofs and made many valuable 

 suooestions and corrections. Mr. C. J. Gahan has oiven 

 much kind assistance in the sections dealing with Cok- 

 optera and in the identification of species. The number of 

 species sent by Mr. Marshall is so large that the work of 

 identification has been very laborious and prolonged, and 

 we desire warmly to thank Sir George Hampson and the 

 whole of the stati" of the Insect Department of the British 

 Museum, every one of whom has been consulted at one 

 time or another. We also wish to thank heartily Colonel 

 C. T. Bingham, who has named the whole of the 

 Hymenoptera; Colonel J. W. Yerbury, who has Avorked 

 out the majority of the Diptera ; Mr. M. Jacoby, who has 

 named many Phytophaga; Monsieur Jules Bourgeois, who 

 has named the Lycichv, and Mr. W. L. Distant, who has 

 named the Hcmiptera. Much other kind assistance has 

 been given and is acknowledged in the text of the work. 



Valuable material with excellent data, comparing in a 

 most interesting manner with that sent by Mr. Marshall, 

 was contributed from British East Africa by my kind 

 friends Mr. and Mrs. S. L. Hinde. 



The thirteen uncoloured plates are reproduced from 

 excellent negatives taken from the actual specimens by 

 Mr. Alfred Robinson in the Oxford University Museum. 

 The two coloured plates are reproduced from Mr. Horace 

 Knight's drawings of the specimens. 



A brief abstract of some of the chief results here recorded 



