LARENTIDA^.—E L 'PITH EC I A . 151 



darker. Female a little larger, and the ground colour faintly 

 tinged with red-brown. 



Undersides of all the wings shining pale silvery-o-rey, 

 tinged toward the costa of the fore wings with brown, and 

 there also clouded with smoky-black sjoots ; discal and 

 central spots small, smoky-black ; beyond these on each wino- 

 are two slender smoky-brown transverse lines. Body and 

 legs whitish-brown. 



On the wing in July and Angust. 



Larva about five-eighths of an inch long and rather thick ; 

 the head has the lobes rounded, is smooth and polished, and 

 considerably narrower than the second segment ; body plump 

 and obese in the middle, but attenuated at the extremities ; 

 the segments transversely wrinkled ; ground colour yellowish- 

 green, greene.st on the anterior segments ; head dull green; 

 a broad deep purple stripe, darker at the segmental divisions' 

 forms the dorsal line, and a pale shade of purple is suffused 

 rather broadly on each side of it ; subdorsal lines greyish- 

 white; there is an equally pale waved stripe above" the 

 spiracles and a pale but greener stripe along them ; ventral 

 sui-face uniformly dingy green. 



Or — Ground colour bright yellowish-green, the head green 

 tinged with brown ; a dark green pulsating vessel forms 

 the dorsal line ; subdorsal lines greyish-white ; there is a 

 similarly coloured waved line above the spiracles, and a pale 

 green stripe along them; segmental divisions yellowish; 

 ventral surface uniformly bright green tinged with vellow 

 (G. T. Porritt.) 



April and May, on the blossoms and young leaves of maple 

 (Acer campestris), but subsisting only upon rhe blossoms so 

 long as they are available, and from its colouring so exactly 

 like them as to be practically invisible. Easily obtained by 

 beating those trees on which the flowers are abundant, over 

 an umbrella. 



PCPA rather slender; limb and antenna covers rather 



