( xiv ) 



in some examples it was more apparent than in others, and it 

 did not always occur. This seemed to bear further witness to the 

 truth of the connection between the characters of Sphinx lirjustri 

 and Acherontia atrojws, to which Mr. Poulton had called attention. 

 Mr. Slater remarked that Mr. Poulton's detection of formic acid 

 in the secretion ejected by the larva of Dlcranura vlnula was very 

 important, and he thought it probable that this acid was contained 

 in the offensive or defensive liquid secretions emitted by other 

 insects. Its presence in the secretions of the Hymenoptera had 

 been long recognised, and it was also known to exist in those of 

 some Coleoptera, e. g., Cychrus rostratiis. He added that it might 

 be interesting if entomologists, who had the opportunity, would 

 search for the presence of cantharidine in such secretions, as the 

 substance was soluble in formic acid, and would doubtless enhance 

 the effect. 



^ April 7, 1886. 



RuBEKT M'Lachlan, Esq., F.R.S., President, in the chair. 



Donations to the Library were announced, and thanks voted to 

 the respective donors. 



Election of Felloxvs. 



Messrs. E. Capron, M.D., J. B. Bridgman, F.L.S., T. D 

 Gibson-Carmichael, F.L.S., A. C. Horner, J. T. Harris, Evan 

 John, A. Sidney OlHff (formerly Subscribers), J. W. Ellis, 

 L.R.C.P., F. D. Wheeler, M.A., J. Rhodes, F.R.M.S., G. Elisha, 

 J. A. Clark, and Martin Jacoby were elected Fellows. 



Exhibitions, dc. 

 Mr. Philip Crowley exhibited a number of Lepidoptera, in- 

 cluding a long series of species belonging to the genus Rhoinalao- 

 sovui, containing many unusual forms lately received from Accra, 

 West Africa also, from the same locality, about sixteen species 

 of the genus Charaxes in remarkably fine condition, and repre- 

 sented in nearly all instances by specimens of both sexes. He 

 also exhibited a specimen of Philognoma lichas and a supposed 

 female of Pajnlio j'horcas (Cx&m.), the markings of which were 

 very similar to tlie male ; but differed in colour, being brown, 



