( 25 ) 



In the same way A. humilis, Sharpe, was found to be speci- 

 fically identical with A. orestia, Hew. The exhibitor remarked 

 that he had been pleased to learn only that morning that 

 his conclusions in regard to the latter species had just been 

 confirmed by breeding, details of which he hoped to be able 

 to publish on a future occasion. Mr. Eltringham further 

 showed examples of A. chambezi, Neave, and A. mansya, Eltr. 

 lxvi] 



These species could only be distinguished at sight by a 

 difference in the position of one of the hind-wing spots, but 

 the male armature showed differences of structure which were 

 as great as those distinguishing any other species of African 

 Acraea. 



Several new species and forms were also shown, including 

 A. lofua, Eltr., ^ and ? , A. grosvenori, Eltr., $ , A. aureola, 

 Eltr., <£ , A. ella, Eltr., <^ , A. cinerea subsp., alberta, Eltr., 

 £ , A. ]>eriphanes f. acritoides, Eltr., ^ , and A. astrigera 

 f. brunnea, Eltr., <$ and $ . 



Dr. Jordan remarked on the extreme variability of the 

 genus and its allies, geographically, individually, and even in 

 the characters of the genitalia. 



Mr. Bethune-Baker remarked on the unreliability of the 

 genitalia in certain Lycaenidae. 



The President stated that the $ genitalia were, as a rule, 

 reliable in the Aculeata, but in the Tenthredinidae the £ 

 genitalia were quite useless for specific determination, though 

 the ? $ afford excellent characters. 



The Hon. Walter Rothschild remarked on the identity 

 of the £ genitalia in certain distinct species of Macroglossinae. 



[lxix 

 Paper. 



" A Monograph of the genus Acraea" by H. Eltringham 

 M.A., F.Z.S. 



lxxii] Wednesday, November 15th, 1911. 



An "imitation" Larva. — Mr. J. R. le B. Tomlin showed 

 a specimen which he said was not strictly an entomological 

 exhibit, but from its curious resemblance to a caterpillar 



