It is the standard work from which all the Museums of the 

 world and all the private collections must determine and 

 arrange the species of this important group of butterflies. 

 In the course of its preparation the author has seen every 

 accessible type and has dissected the male armature of every 

 available species, and there were very few which he was 

 unable to obtain for this purpose. Special mention must also 

 be made of a most useful alphabetical list of types with a 

 statement of their location so far as it is known. As soon as 

 the monograph was published Mr. Eltringham arranged the 

 University collection of Acraeinae, and about 80 of the 

 drawers were on exhibition in one of the rooms of the Linacre 

 Professor throughout the week of the Congress. 



In collaboration with Dr. Karl Jordan Mr. Eltringham 

 completed the section Acraeinae for the " Lepidopterorum 

 Catalogus" — a work that has since been published (Berlin, 

 1913). With the same author he has completed the section 

 Acraeinae for Wytsman's " Genera Insectorum " (Brussels). 

 Mr. Eltringham has also been engaged upon the following 

 researches : — 



(1) Preliminary investigations into the urticating properties 

 of the imago stage of Porthesia similis, P. chrysorrhoca, 

 Anaphe infracta, and other Lepidoptera. (Proc. Ent. Soc, 

 1912, p. lxxviii.) This investigation, upon which he is still 

 engaged, was suggested by Mr. W. A. Lamborn's observations 

 in the Lagos district. 



(2) Preliminary investigation into the structure of the male 

 genital armature in certain species of Hcliconiits. 



(3) The histological structure of the scent patches and 

 abdominal brushes in the male Amauris niavias, described 

 and figured in a paper read before the Entomological Society, 

 to be published in the course of the present year. 



7. Work on the British Collections of Coleoptera. 



During the past year Commander Walker has continued 

 his kind help, and has made considerable progress in the 

 remounting and rearrangement of the Clavicorn Coleo- 



