1877.] 3 



segment is an elevated process, divided into two blunt-tipped 

 tubercles (Hiibner's figure referred to above has four pairs of 

 tubercles) ; the segments generally are moderately defined above, 

 more deeply below and very delicately wrinkled, with three or four 

 subdivisions across the back of each : the head is pinkish flesh colour, 

 and a clear margin of this is left on the ridges of the divided crown, 

 from whence it is relieved below by brown spots on the face and by a 

 dark brown outline of the lobes there, and on the middle of each lobe 

 are three lines of dark spots, i. e., one spot at the side of the cheek, 

 two in the middle, and a few more very minute between and above 

 them, also a dark spot or two about the mouth, the papillis whitish, 

 the ocelli black ; the thoracic segments much suffused with brownish- 

 ochreous, on which both the dorsal and sub-dorsal regions are strongly 

 blotched with dark crimson-brown, the tubercles brown wdth yellow 

 tips ; hence the colour of the back and portions of the sides is a 

 brilliant deep yellow, bearing extremely minute elongated freckles of 

 dark brown, a series of these freckles faintly indicating dorsal and 

 somewhat of sub-dorsal lines, and an assemblage of them close 

 together constitute a dark spot on each side of the twelfth segment 

 near to the only distinctly noticeable spiracle, which is there seen as 

 a faint brown oval outline ; a fine hair proceeds from each of the 

 usual localities ; on the belly, the legs, and some portions of the sides 

 the ground colour is pink, deeply tinged and freckled above with dark 

 crimson-brown, this fluctuates along the middle segments of the body 

 in two distinct waves on either side from the spiracular I'egion of the 

 fifth segment, and falls again rather lower each time than its previous 

 level, till at the eleventh segment and onward to the anal point it 

 covers scarcely more than the ventral surface ; the summits of these 

 dark waves reach high on the back of the sixth and ninth segments in 

 such strong contrast to the yellow as to create something of an optical 

 delusion in regard to the shape of the body. 



When the larva prepared for changing it began to spin upon the 

 upper surface of a leaf not very far from the footstalk, and soon 

 contrived to draw upwards a portion of the two sides so as to form a 

 cavity, to which the mid-rib of the leaf would be a support below, 

 though its actual position was not quite in the middle of it ; the w^alls 

 (so to speak) in a short time began to approach each other as the 

 foundations were progressing, which consisted of three or four thick 

 little pads of silk attached on either side opposite each other, drawn 

 from time to time closer and closer together and connected by very 

 short and stout threads ; these were presently rendered still shorter 



