Redtenbacher types in the Vienna Museum ; Dr. 0. Taschen- 

 berg, for several of Burmeister's types in the Halle Museum ; 

 Herr Schenkling, for those of Kraatz in the Berlin Ento- 

 mological Museum ; Captain Moser, for types of Brenske in 

 his possession ; and Dr. Ohaus, for some of those described 

 by himself. 



Amongst those who have contributed other valuable 

 materials for the work I must especially mention Dr. R. 

 Gestro, Director of the Genoa Civic Museum, whose equally 

 valuable assistance with my previous volume I accidentally 

 omitted to acknowledge, and who not only contributed the 

 most important collection of RUTELIN^E which has yet been 

 made in Burma (that of the late Leonardo Fea), but also 

 supplied the coloured figure reproduced in the frontispiece 

 of the unique type of Dicaulocepli a lus fea>, Gestro. 



Mr. F. H. Gravely, of the Indian Museum, Mr. T. Bain- 

 brigge Fletcher, of the Agricultural Research Institute, Pusa, 

 Mr. E. E. Green, late Government Entomologist in Ceylon, 

 and his successors, the late Mr. Rutherford and Mr. G. M. 

 Henry, Mr. C. F. C. Beeson, of the Forest Research Institute, 

 Dehra Dun, Mr. E. A. D'Abreu, of the Nugpur Central 

 Museum. Mr. E. Ballard, Government Entomologist for 

 Madras, have all assisted by sending collections belonging 

 to their various institutions and increased by their personal 

 exertions. Mr. H. E. Andrewes' large and important collec- 

 tion has again been of the greatest value ; and the following 

 gentlemen have all aided by collecting for me in different 

 parts of India : the late Mr. W. K. Webb, Mr. H. Stevens, 

 Capt. A. K. Wld-Downing, Mr. C. F. S. Baker and Mr. F. 

 M. Mackwood. 



More than to any other single individual I am indebted 

 to Dr. A.dam Boving, of the United States National Museum, 

 for the exceptional kindness with which he copied for me in 

 America both letterpress and illustrations of an important 

 memoir published in Germany shortly before the outbreak 

 of war, which would otherwise have been inaccessible to 



