DOTTED BORDER WAVE. II3 



that 1 reared from eggs deposited in September, 1904, fed for a 

 time on fresh dandelion, but on the approach of winter they 

 apparently ceased feeding, and were allowed to remain in the 

 box with the food last supplied. In March it was found that 

 they had been, and were then, eating the old provender. Some 

 fresh dandelion was added, but this was not touched until all 

 the old had been consumed. The same thing was repeated 

 until the caterpillars were nearly full grown, when the fresh 

 food was eaten as well as the stale. The moths resulting from 

 them emerged during the last week in April, 1905, and were all 

 well above the average size, and considerably larger than the 

 female parent. One example is represented by Fig. 14 on the 

 plate. 



There are certainly two generations of the moth during the 

 year ; in some years possibly more. 



Dotted Border Wave {Addalia (Ptychopoda) siraminata). 



In its ordinary form this moth (Plate 45, Figs. 9, 12) is 

 greyish white, sometimes with a tinge of brown, especially on 

 the fore wings ; the darker cross lines are slightly wavy ; each 

 wing has a central black dot, and there is a more or less distinct 

 series of black dots on their outer margins. Ab. circellata, 

 Guen^e (Plate 61, Fig. 3), has the first and second lines of 

 the fore wings strongly defined and deep brown, and the first 

 is united with the central shade above the inner margin ; the 

 corresponding lines on the hind wings are also deep brown. 

 This form, which occurs on the Lancashire and Cheshire mosses, 

 and is known as the Obscure Wave, has been considered a 

 distinct species, but it is connected with typical straminata by 

 intermediate aberrations which occur together with circellata 

 and the ordinary form on the same ground. Similar intergrades 

 also occur in the New Forest, Hampshire, the Dover district of 

 Kent, and probably elsewhere. 



SeHes II. I 



