47 



mens of butterflies from British Guiana, all taken in one 

 forest path, for the purpose of illustrating the principal 

 mimetic group of the locality. The species exhibited were 

 Lycoreanag, Lycorea ceres, and L. pasinuntia; Nymphalinas, 

 Eresia cunice ; Heliconinae, Heliconius vetustus, H. numata, 

 H. eucoma, H. silvana, Eueidcs nigrofulva, and E. Isabella ; 

 Ithomiinae, Mclincca crameri, M. mneme, M. egina,M. mnasius, 

 Mechanitis pannifera, M. polymnia, Ccratinia philidas, C. 

 enclea, C. ninonia; Lemoniinae, Stalachtis calliope. 



Mr. H. McArthur exhibited a case containing a pair of 

 Thysania agrippina, the largest known species of Lepidoptera, 

 and a pair of Ncpticula pvumctorum, which is about the 

 smallest species known. 



Mr. L. W. Newman exhibited (i) fine bred series of the 

 various species in the genus Notodonta ; (2) hybrids between 

 Smcrinthus occllata and Amorpha populi, Notodonta ziczac, and 

 N. dromcdarius, Selenia tetralunaria (illustraria) , and 5. bilu- 

 naria (illunaria) ; (3) bred series of Nyssia lapponaria, melanic 

 Boarmia gcmmaria (rhomboid-aria), Leucania vitellina, and 

 Dasycampa rubiginea, etc. ; and (4) a very long and varied 

 series of Melitcea aurinia {avtemis). 



Mr. C. P. Pickett exhibited a number of drawers of 

 Lepidoptera containing many beautiful varieties, including: 

 (1) Mimas Mice, with black hind wings, with straw-coloured 

 hind wings, asymmetrical forms, dark suffused inversion 

 of sexual coloration, etc. (2) Polyommatus covydon, <$s show- 

 ing all the range of blue coloration from almost whitish 

 to almost Adonis blue, ? s showing all gradations of S 

 coloration, undersides of both sexes illustrating varied degrees 

 of ab. striata and ab. obsoleta ; examples of all named forms 

 were included. (3) Long varied series of P. bellargus, P. 

 astrarche, Cupido minima, and Chrysophanns phlccas. Of the 

 first-named the o^s were lilac-blue to quite green-blue; of 

 the first three species all degrees of striation and obsolescence 

 of spots on the undersides were shown ; of the last species 

 several with suffused spots and one with the spots lengthened 

 into lines. (4) Fine series of hybrids between , -J. popnli and 

 S. occllatus, P. curtula and P. reclusa, S. bilunaria and S. 

 tetralunaria, and A 7 , dromedarius and N. ziczac. (5) Extremely 

 long series of Angerona prunaria, the result of continuous 

 breeding, interbreeding, and crossing of races for the last 

 eight years, from a S (orange), Raindean Wood example, 

 and a ? (banded), Epping Forest example, taken in 1S9S, 

 comprising two new forms, viz., pickettaria and pallidaria. 

 Ab. pickettaria is of the banded type, the bands on the fore 



