BREPHOS. 197 



The head, thorax, and upper surface of the abdomen are 

 black, with brownish, and occasional white hairs. The body 

 is long and slender, especially in the male, much like that 

 of a Geometra. The antennas of the female are setiform, 

 black ringed with white ; in the male they are fusiform, and 

 pectinated. The pectinations are black, like the dorsal 

 surface of the shaft, but appear lighter, as they are sur- 

 rounded by short brown hairs. The eyes are large and oval. 

 The pectus is clothed with long shaggy grey hair, and so is 



The Orange Underwing. 



the under surface of the abdomen in the male, but in the 

 female the grey hair is limited to the first segments, the hair 

 on the hinder segments being pale yellow, long and fine. 



The fore-wings are marbled with grey and reddish-brown, 

 one colour sometimes predominating, and sometimes the other, 

 and the surface is powdered with black atoms. The first 

 transverse line is black and zig-zag, with an indistinct whitish 

 border towards the base. The central area is at first of the 

 ground-colour, and contains the annular orbicular stigma. 

 Then comes a more or less distinct narrow or broad transverse 



