PREFACE. 



In the second volume of this work the larvas of the 

 first twenty- seven of our Bombyces appeared ; the 

 present volume includes the remainder of our Bom- 

 byces. 



Since the publication of Vol. II, the Hay Society 

 has sustained a most serious loss in the death of the 

 Rev. John Hellins, who had for so many years worked 

 with Mr. Buckler at the subject of which these volumes 

 treat. Though Mr. Hellins had not been in robust 

 health of late years, it was hoped that he would have 

 been spared to us for some years longer, to assist in 

 the completion of several more of these volumes. 



The task which had specially devolved on the Rev. 

 John Hellins was that of writing out the descriptions 

 of those numerous larvaa, of which, although they had 

 been faithfully depicted by Mr. Buckler, no descriptive 

 notes by him were extant amongst his papers, nor had 

 he at any time published descriptions of them. Thus, 

 out of the seventy-nine larva3 figured in the present 

 volume, only thirty-two were described at the time of 

 Mr. Buckler's decease. 



We had hoped that descriptions of a large propor- 

 tion of the forty-seven which were thus deficient 

 would have been furnished by Mr. Hellins, but, un- 



