l82 THE MOTHS OF THE BRITISH ISLES. 



wings are dull reddish-brown, inclining to purplish. This form 

 which has been referred to corailata, Hufnagel, is pretty 

 generally distributed abroad, but is apparently only of local 

 occurrence in the British Isles. 



The caterpillar is very similar to that of the next species, it 

 feeds on the same kinds of plants, and during the same months 

 of the year. (Plate 74, Fig. 2.) The first generation of moths 

 is on the wing in May and June, and the second in August. 



The species is widely distributed in England and Wales, 

 often plentiful in some districts in the southern half of the 

 former country, scarce and more local northwnrds from York- 

 shire. Widely spread in Roxburghshire and Clydesdale in 

 Scotland, but less frequent than ferrtigata; this also seems to 

 be the case in Ireland. The range abroad extends to North 

 America. 



Note. — It is to be regretted that the names by which this 

 and the following species have been known for many years may 

 have to be changed. It has been claimed that the reddish- 

 banded form of unidcntaria^ Haworth, is indentical \^\\hferru- 

 gata as figured by Clerck, Icones^ Plate XI. Fig. 14, and is also 

 referable to corciilata^ Hufnagel, both earlier names. If the red 

 form referred to is adopted as xS^q ferrugata of Clerck, then that 

 name will supersede uiiidentaria^ Haworth, and the species now 

 known 2is/errugaia, Clerck, will become spadicearia. Authori- 

 ties, however, are not agreed upon this point, so the question 

 still remains open. 



Red Twin-spot Carpet {Coremia {Ochyria) ferrugata). 



Five examples of this variable species are shown on Plate '] 2, 

 Figs. 8-12. The ground colour of the fore wings is usually 

 greyish, more or less ochreous tinted, but sometimes inclining 

 to whitish ; the basal patch and the central band are reddish 

 brown, the latter usually entire in southern specimens, but 



