60 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xii, 



Larva. — Stage before the last: Length 60 mm.; thickness of body 15 mm., width of head 

 6 mm. Body thick, beneath broad and flat; the segments unusually convex and the sutures 

 wide and deep, with conical tubercles on top of the swollen segments and the transverse ridges 

 surmounting them. Head not quite half as wide as the body in the middle, not very large, 

 though much as in G. maia; it is nearly as wide as the prothoracic plate, which is not quite 

 half as wide as the third thoracic segment, the surface finely granulated, pale green. Pro- 

 thoracic plate small, the surface smooth, subrugose, except on the front edge where there are 

 four rounded conical yellowish tubercles, the two on each side of the median line close together. 



The shape, color, and arrangement of the tubercles are much as in Gynanisa maia, but 

 they are very much shorter, conical, not much higher than they are broad at the base; the 

 dorsal tubercles of the same size on all the segments, thoracic (first excepted) and abdominal; 

 they are white and conspicuous; only the tubercles of the two dorsal rows are developed and 

 these crown the large fleshy prominences, which give the larva a Telea or Antheraea appearance; 

 on the crown of the tubercles are two warts (rarely three) which however do not bear setae. 



The second thoracic segment with two long conspicuous pearly silvery transverse slashes of 

 equal size on each side, the upper one ending on the dorsal tubercle, the lower one ending on 

 the minute supraspiracular tubercle; third thoracic segment without the pearly silvery spots, 

 only the minute tubercle remaining. The second, sixth, and seventh abdominal segments are 

 marked with conspicuous silvery pearly spots like the thoracic ones, there being four of them 

 on the upper surface of each segment named; on abdominal segments 1,3, and 5 the pearly 

 areas are wanting; these spots are directed obliquely backwards. 



The median tubercle on the eighth abdominal segment is formed of two twin rounded low 

 conical tubercles, the valley between them being shallow; the tubercles are old ivory color, not 

 being half as high as in Gynanisa. On this segment there are no silvery spots, and the supra- 

 spiracular tubercles are much reduced, minute. On the ninth segment the two dorsal tuber- 

 cles are close together, but either one of them is considerably larger than the median dorsal one 

 on the segment preceding, and the base is silvery pearl color. 



Suranal plate small, short, not half as long as wide, the tip conical and slightly forked; it is 

 old ivory or yellowish white; the surface with four large conical tubercles, two near the middle 

 and one (the larger) on each side, and among them are about 15 much smaller copal-red tuber- 

 cles or warts. Spiracles yellowish. 



The tubercles of the infraspiracular row are minute, conical, whitish; below this row and 

 on the under side are thickly scattered minute white warts, with a pit in the center, but no seta. 

 Body unusually free from small hairs, all being atrophied. 



Anal legs green, a whitish triangular area on the side, the edge along the planta reddish 

 copal yellow. Thoracic feet small, short, yellowish green; abdominal legs (of middle pairs) 

 dark green, short, with a semicircle of greenish setae. 



The larva in this stage is evidently related to Gynanisa, but the tubercles are much more 

 reduced, especially those of the supraspiracular row; it thus appears that Gynanisa is the 

 more primitive or stem form, and Lobobunaea probably evolved from a common ancestor of 

 the two genera. 



Last stage: Length 80 mm.; greatest thickness of body about 19 mm.; width of head 

 7£ mm. 



Of the same shape and nearly as large as the larva of L. phaedusa. Body unusually thick 

 but not so Telea-like as in the previous stage, since the segments are a little less convex, and 

 the convexity on the dorsal side is not added to by the conical tubercles. Head not half so 

 wide as the second segment, and scarcely more than half as wide as the entire prothoracic 

 segment; color green. Prothoracic plate smooth with slight transverse rugose lines; the front 

 edge a little thickened, white on the side, but with no traces of the four tubercles of the -previous 

 stage, unless one mark or indication of one on one side. 



The two dorsal tubercles on the second and third thoracic segments now reduced to two 

 darlc-brown spots, the skin under them scarsely raised, and no signs of a seta can be detected, 

 while there are no traces of the silvery marks of the previous stage. No traces of tubercles on the 



