NOTODONTID^. 153 



iudisbinct, brokea, black, transverse line, edged outwardly 

 with whitish ; beyond this the usual first line is nearly 

 straight and almost perpendicular, black, edged inside, rather 

 broadly, with white ; second line oblique, angulated above 

 the dorsal margin, and sharply toothed close to the costa, 

 otherwise rather curved, edged outside with whitish ; beyond 

 this, in the broad pale hind-marginal band is a slender much- 

 indented black line parallel with the hind margin, this also is 

 edged, internally, with whitish ; between the first and second 

 lines the nervures are sharply black, regularly dividing a 

 faint yellowish transverse band which precedes the second 

 line ; discal spot white edged with black ; cilia pale grey, 

 dashed with darker. Hind wings short, rounded, slightly 

 crenulated at the margin ; pale grey, darker toward the hind 

 margin, with a still darker cloud, from the anal angle, across 

 the middle, and two white streaks at the anal angle. An- 

 tennae of the female very shortly but distinctly pectinated ; 

 otherwise similar. 



Underside of the fore wings smoky-brown, with the hind 

 margin paler, and before it a darker smoky-brown band 

 preceded on the costa by a whitish spot ; hind wings paler 

 smoky-brown, with a still paler indistinct cross stripe ; cilia 

 of all the wings whitish, regularly spotted with dark brown 

 or black. 



On the wing in June — that is to say, the British specimens 

 appear to have occurred in this month. On the Continent 

 the species is found in April and June or July in two 

 generations. 



Larva cylindrical and very even in thickness ; head pale 

 green, body rather light green with a slender whitish dorsal 

 line ; pairs of dark-red or rusty-brown spots on the back of 

 the third and fourth, seventh to the eleventh, and thirteenth 

 segments ; subdorsal lines pale yellow, rather broad and 

 distinct ; spiracular line yellowish, only visible on the anterior 

 segments ; spiracles blackish ; legs and prolegs green, as also 



