I70 THE MOTHS OF THE BRITISH ISLES. 



white wavy submarginal line. Variable in tint and in marking, 

 the variety generally known as alboa'enata^ Curtis (Plate 65, 

 Fig. 8), is perhaps most frequent in Perthshire and Sutherland. 

 Two other examples of the Scottish form, which Staudinger has 

 named effusaria^ are depicted on Plate 61, Figs. 8, 9. 



The caterpillar is green, inclining to yellowish ; three stripes 

 on the back, the central one reddish brown and broad, but 

 only distinct at each end, the other paler green ; spiracles, 

 white, placed in a reddish-brown stripe, which is sometimes 

 broken up. It feeds on sloe, birch, oak, and the foliage of 

 other trees, and may be found from July to September, and 

 even later. 



The moth is out in May and June, and is to be beaten from 

 hedges, or may be found at rest on tree-trunks, palings, etc. 



Generally distributed, but not extending to the Scottish 

 Isles. 



Abroad, the range spreads to Amurland and Japan. 



Common Marbled Carpet {CidaHa tnmcatd). 



Six examples of this very variable species are shown on 

 Plate 66, and these have been selected to illustrate the more 

 important forms. There are a number of modifications of 

 each of the forms, and several of these have been named. 

 Fig. I of our plate represents the typical form, and this is 

 Haworth's centumnotata (Common Marbled Carpet) ; Fig. 2 

 is ab. commanotata of Haworth (Yellow Marbled Carpet) ; 

 Fig. 3 is 3.h. perfiiscata, Haworth (The Brown Marbled Carpet), 

 and Fig. 4 is a modification of the same form. A specimen 

 from Arran is shown in Fig. 5 ; this example agrees fairly well 

 with that figured in Wood's hidex as coiicimiata from Arran. 

 In his description of the form, Stephens does not mention 

 fulvous bands in his type. Fig. 6 shows a specimen from 

 Stornoway, Isle of Lewis, which appears to be a modification of 



