vil, viii | OC) 
The Rey. A. E. Eaton inquired whether the coloured juice 
was exuded from any particular pore, and suggested that when 
crushed it would be worth while to put the specimen into a 
solution of formaline, as he had noticed that in some species 
under this treatment certain pores of the antenne were 
extruded, and that the liquid came, not from the air tubes, 
but from some special processes. 
Mr. G. C. Cuampron mentioned that he had observed a 
fluid exuding from the thorax of many Anthrocerids, and Dr. 
G. B. Lonestarr said that he had found the expression of 
fluid from the antenn so usual in collecting that he shifted 
his specimens in papers after a short time to prevent them 
adhering to the envelopes. 
A discussion followed on the organs and uses of scent for 
purposes of attraction and defence in insects generally, Mr. 
J. W. Turr drawing attention to the fact that there are two 
glandular scents in Lepidoptera: the one emanating from the 
androconia ; and the other from the body, and that in determin- 
ing the scent peculiar to the various species they must be 
distinguished. 
Professor Poutton, in congratulating Dr. Dixey and Dr. 
Longstaff upon the interesting results of their careful observa- 
tions in the field, referred to the fact that the scents observed 
in the males alone, and presumably epigamic in significance, 
were pleasing to the human sense, whereas those common to 
both sexes, and presumably aposematic, were unpleasing to 
man. Lx hypothesi, the first set appealed to the sense of the 
female insect, the second to that of insect-eating vertebrates. 
That the former should be agreeable to man appeared to be 
a far more astonishing result than that he should find the 
aposematic scents unpleasant. Professor Poutton also 
mentioned having seen in a dissection of the larva of 
Cossus, prepared by Mr. O. H. Latter, a long tubular 
gland emitting the odour peculiar to that species. The 
Presipent, Dr. T. A. Cuapman, Mr. G. Brtuune-Baxer, 
Mr. M. Burr, Mr. G. J. Arrow and other Fellows continued 
the discussion, at the close of which Dr. Dixy replied, 
reminding Mr. Tutr that he had already dealt with ‘“ andro- 
conial” scents on two former occasions. It was of .course 
