BOMBYCID^. 47 



and rather narrow in the male, more ovate in the female ; 

 costa but slightly curved ; apex pointed ; hind margin long 

 and obliquely rounded, regularly scalloped between the 

 nervures ; dorsal margin deeply excavated near the anal 

 angle, rounded in the middle; light chestnut-brown; first 

 and second lines dark brown, regularly indented on each 

 nervure ; starting near together on the dorsal margin and 

 running almost parallel to near the costa, where the second 

 line bends a little outward and almost touches the outer side 

 of a dark brown or blackish lunule situated at the end of the 

 discal cell, thence passes to the costa; a pale shade lies 

 between these lines and forms a rather squared spot behind 

 the lunule ; half-way between the second transverse line and 

 the hind margin, and parallel with the latter, is a regularly 

 indented and scalloped dark-brown transverse line, edged 

 broadly inside with pale brown or whitish ; outside this the 

 hind-marginal region is pale purplish grey. Hind wings 

 rather narrow, except where the anterior margin is arched so 

 as to project in front of the closed fore wings ; apex ex- 

 cavated ; hind margin rounded and deeply scalloped between 

 the nervures ; pale purplish brown, with the dorsal margin 

 broadly paler or whitish, and a broad ill-defined whitish 

 central transverse band. The scalloped margins of all the 

 wings are sharply marked with a slender rich brown line, 

 projecting at the tips of the nervures ; between these the cilia 

 are white. Sexes much alike, the female rather the larger. 



Underside of all the wings whitish tinged with purple- 

 brown, and having large, lighter brown clouds toward the 

 front of all the wings ; cilia white, with a brown basal line ; 

 body and legs light brown. 



Apparently not variable with us. Continental specimens 

 usually have a tinge of bluish over the central portion of the 

 fore wings, which seems absent in all those obtained here. 



On the wing in April and early in May. 



I^ARVA cylindrical with rather prominent prolegs ; covered 



