20 LEPinOPTERA. 



1. M. cribrella, Z/it^. ; cribrum, !<ln. Man. — Expanse 

 1 to I ] inch. Fore wings elongated, broad behind ; shining 

 snow-wliite with six scattered black dots before the second 

 line — which last consists of smaller black dots. Hind wings 

 shining grey, shaded with white. 



Antenna? of the male long, simple, but bent, snowy-vvliite 

 with a slender black-brown line down the front ; palpi slender 

 and curved up, pointed, pure white ; the base of the tongue 

 also white in front ; head and thorax snowy-white ; abdomen 

 grey-black with a broad white band on the hinder area of 

 each segment ; anal tuft also white. Fore wings elongate, 

 evenly increasing in width from the base ; costa almost 

 straight ; apex bluntly angiilated ; bind margin straight, 

 but rather oblique ; colour shining snowy white, the costa 

 faintly edged with a dusting of black ; the markings con- 

 sisting wholly of black dots — one at the base, two more at 

 the position of the first line, and one beyond it, all rather 

 large and distinct ; two smaller indicating the discal spot ; 

 and an oblique, very complete row, still smaller, forming the 

 second line ; also a row still more minute, along the hind 

 margin ; cilia shining white. Hind wings long, not very 

 broad, the apex rather pointed and hind margin hardly 

 curved ; smoky-grey, darkest at the apex and along the 

 hind margin, but with longitudinal stripes of smoky-white 

 between nervures, shading to white afc the dorsal margin ; 

 cilia white. Female similar, often larger, and sometimes 

 having the hind wings more uniformly dark. 



Underside of the fore wings smoky-black, the costa white, 

 but with a black spot near the tip : cilia white. Hind wings 

 as on the upper side, iiody dark leaden brown. Legs 

 white. 



(Jn the wing from June till the beginning of August. 



Larva about an inch long, rather plump, and of nearly 

 uniform width throughout ; head highly polished, narrower 

 than the second segment, intensely black ; dorsal plate 



