PORTLAND LEPIDOPTERA. 147 



either rare or extinct in this locality. I have also to thank Mr. 

 Dale for notes and records of some other species not included in 

 his list. Secondly, I have made use of a list published by Colonel 

 C. E. Partridge in The Entomologist (Vol. XXII., 1889, at pages 

 43 and 56) of those species which he had himself taken at Portland, 

 \vhich includes a few which I have not met with. Colonel 

 Partridge, living at Portland, and having been, during part of his 

 time there, a very energetic collector, added several species to 

 the list of Portland insects, as well as one or two varieties. The 

 Rev. 0. P. Cambridge, Rev. C. R. Digby, and Mr. E. R. Bankes 

 have also greatly contributed to the list at different times, chiefly 

 before I came into this neighbourhood, and I take this opportunity 

 of thanking them for their kind help, especially Mr. Bankes, who 

 has given me much useful information about various species. 



In Portland I have thought it well to include the part of the 

 Cliesil Beach from the Ferry Bridge to Portland station, which 

 seems to fall more naturally into this district than into that of the 

 adjoining main land ; though its entomological productions are of 

 so marked a character that it might almost deserve a separate list. 

 With comparatively few exceptions the undercliff is the chief home 

 of insect life at Portland. The higher parts are mostly either 

 quarried for stone or cultivated, and moths are very susceptible to 

 anything that is always disturbing them, and, with few exceptions, 

 speedily become rare when exposed to such influences ; added to 

 which the heights of Portland are very bleak and afford but little 

 shelter, such as is found on the undercliff. Towards the Bill there 

 is less cultivation and we find consequently more moths, but in 

 nothing like the variety and numbers which the undercliff 

 produces. The total number in my list is just under 600, which is 

 no mean one, considering that there is no variety in the soil and 

 that the whole of Portland is more or less bleak and stony, though 

 it sounds little in comparison with the Purbeck list of over 1,000. 

 Purbeck, however, is greatly favoured in possessing coast, bog, 

 saltmarsh, sandhills, heath, down, and wood, each with special 

 species. 



