VARIETIES OF NOCTURE IN THE BRITISH ISLANDS. 47 



Cymatophora, Tr., duplaris, L. 

 a. var. argentea, mibi. — The ground colour of this variety is 

 of a silvery white, instead of the prevailing grey, the transverse 

 lines being very distinct. This form bears a slight, superficial 

 resemblance to the allied C. fluctuosa. I have to thank Mr. Kane 

 for specimens which came from Ireland. I have since received 

 similar specimens from Lincolnshire. 



i3. var. ohscnra, mibi. — The anterior wings of an almost 

 unicolorous leaden grey. Occurs in Kannoch. 



Cymatophora, Tr., dilnta, F, 

 Var. nubilata, Robson and Gardner's List (1885). — The 

 ground colour is much darker than in the type, and the dark 

 transverse lines which cross the anterior wings are united so as 

 to form three (three or four, Eobson) decided bars across the 

 anterior wings. The colour of the bars and basal blotch is a 

 rich chocolate-brown. My specimens were obtained in Yorkshire, 

 and came from Mr. J. Harrison, of Barnsley. The form is 

 figured in Newman's 'British Moths,' p. 240 (upper figure). 



Asphalia, Hh., Jiavicornis, L. 

 Var. scotica, Staudinger. — The ground colour is of a very 

 much darker grey than in the type, although the ordinary 

 markings are very distinct. It is the usual Eannoch and Perth 

 form, hence its name. I have also received it from Yorkshire, 

 where it is occasionally captured with the type. 



Asphalia, Hb., ridens, F. 

 Var. interrupta, mibi. — In this variety the base is pale, the 

 dark, central, transverse band on the anterior wings is broken 

 up by a pale patch extending through it from the costa to the 

 inner margin, the dark band being represented by two dark lines 

 on either side of this pale patch. The type is figured in 

 Newman's ' British Moths,' p. 243, and has a dark central band 

 across the anterior wings. I have specimens of var. interrupta 

 from all localities whence I have obtained the type. 



Bryophilid^, Gn. 

 This small family is subject to a very great deal of variation, 

 owing to the sufi'usion of the anterior wings with coloured scales, 



