APPENDIX 0. 



Several of the Teneriffe moths, although similar to 

 English and European species, assume rather a darker 

 insular form. The Triphgena Pronuba, Oalocampa 

 Exoleta and Asopia Farinahs are examples of this. The 

 Sterrha Sacraria is also met with marked with a 

 much brighter red than in ordinary specimens, and 

 showing great diversity in shade of colour, from red 

 to almost yellow. Anyone wishing to acquire more 

 knowledge on this subject should refer to " Observa- 

 tions on some remarkable Varieties of Sterrha Sacraria, 

 with general notes on Variation in Lepidoptera, by 

 R. M. McLachlan, F.L.S." Transactions of the Ento- 

 mological Society of London, Ser. 3, vol. ii, pp. 453-468, 

 pi. 23. 



Those who are interested in the subject, and have 

 sufficient time and patience, would probably be well 



