144 LEPIDOPTERA. 



Larva. ^ — Head rounded, notched on the crown ; face flat ; 

 second segment narrow, gradually widening to the sixth, 

 remainder even, but the thirteenth sharply attenuated to the 

 anal extremity. On the twelth segment is a prominent 

 dorsal hump, and a smaller double hump each on the fifth to 

 the ninth, most conspicuous when the larva is at rest. Head 

 pale yellowish-brown with a chocolate-brown streak on each 

 side, and others on the mouth and sides of the lobes. General 

 colour greyish-white tinged with green ; dorsal line dull dark 

 green broader from the second to the sixth segment ; subdorsal 

 lines paler green and bordered outside by a pale yellow stripe; 

 no perceptible spiracular lines. The hump on the twelfth 

 segment is dark purplish-brown ; second segment with a 

 collar of black horny spots ; segmental divisions yellow ; 

 anterior part of the back dotted with black ; spiracles large 

 and distinct, pinkish surrounded with black ; ventral surface 

 yellowish-green, without markings ; legs and prolegs pinkish- 

 brown. Rests with the front and anal segments raised and 

 thrown back, in the usual Notodonta attitude. (G .T. Porritt.) 



Variable in colour — pale green, pale lilac, pinkish, or yellow- 

 ish, in each case the broad dorsal stripe on the second to sixth 

 segment is conspicuously darker, and the skin very glossy. 



June and July on maple (Acer ca7npestris), usually upon the 

 small bushy maples which grow under trees in woods, always 

 if possible choosing a shady spot. The Rev. Bernard Smith 

 says that, if exposed to sunlight, the colour of the larva becomes 

 brighter, but that it will not thrive; also that it always sits 

 at the edge of the maple leaf. Although this is its favourite 

 food, sycamore is not refused in confinement. 



Pupa rather slender, rounded at both ends, with the anal 

 segments smooth, and the whole surface glossy blackish- 

 brown. In a thin silken cocoon on the ground under dead 

 leaves, or moss, or among loose soft earth, or even under moss 

 on a tree trunk, but apparently not at the roots of trees. In 

 this state through the winter. 



