64 



hood having been destroyed by them, although cauliflowers 

 growing in the same fields had not been touched. In the dis- 

 cussion that followed, several other members stated that they 

 had noticed numbers of larvae in different districts, and refer- 

 ence was made to the unusual number of P. rapa this year. 



JULY z%tk, 1887. 



R. ADKIN, Esq., F.E.S., President, in the Chair. 



The Rev. W. F. Johnson, F.E.S., was elected a Correspond- 

 ing Member. 



Mr. W. West exhibited specimens of Apamea ophio- 

 gramma, Esp., taken flying over Ribbon Grass in his garden 

 at Streatham, and remarked that two years ago he showed 

 some larvse found on the same clump of grass, which were 

 not identified at the time, but were thought by several mem- 

 bers to be the larvse of this species. Unfortunately he was 

 unable to rear these larvae ; having now, however, cap- 

 tured the species in considerable numbers flying over this 

 particular clump, he thought it was probable that the larvae 

 then found were those of the species he was now exhibiting. 



Mr. R. Adkin considered it would be much more satis- 

 factory if Mr. West could again find larvae, and rear the 

 perfect insect. 



Mr. J. T. Williams said that Ribbon Grass had been 

 introduced into this country, but the larvae of A. ophiogramma 

 were said to feed on the roots and stems of species of Arundo 

 which were to be found growing on the Greenwich marshes. 

 The species used to occur sparingly on these marshes, and 

 also on the Hammersmith marshes. 



Mr. Tugwell exhibited bred specimens of Apatura iris, 

 L., and pupae cases of the same, the larvae having been found 

 at Brockenhurst. 



Mr. T. W. Hall exhibited varieties ot Abraxas gros- 

 sulariata, L., one having a distinct yellow band on the hind 

 wings. Mr. Hall said he had bred four distinct species of 

 parasites, Cassinaria vidua, Gr., and its hyper-parasite, Meso- 



