528 Appendix. 



eleventh segment, the pairs on the fourth and fifth seg- 

 ments being longer than the rest, very erect, and armed 

 with short simple prickles for three-fourths of their upper 

 extremity. The anal horn, which is shorter than the 

 spines, is of the same character as the latter, being 

 covered with prickles, and much inclined backwards. 

 Two lateral rows of similar shorter spines extend from the 

 fourth to the I2th segment, and on each of the segments 

 6 ii the space between the upper and lower spines 

 is marked with a conspicuous pale yellow spot. Two 

 rows of smaller similar spines extend on each side (below 

 the two rows of larger ones) from the second to the 

 thirteenth segment, one spine of the lowermost row being 

 on the fleshy base of each pro-leg. All the pro-legs are 

 white close to the base, and russet-brown beyond. 

 Head smooth, unarmed in adult, greenish-white with two 

 longitudinal russet-brown stripes on face. 



"The young larvae have proportionally much longer and 

 more erect spines with distinct long prickles on them. 

 There is a short pair besides, either on the back of the 

 head or on the second segment. Moreover, the dorsal 

 spines of the third and fourth segments, and the anal 

 horn (which is quite erect, and the longest of all), are 

 longer than the rest, and distinctly forked at their 

 extremity. 



" Mr. Gooch notes that these young larvae might readily 

 be mistaken for those of the Acraa, and suggests that 

 this may protect them. He also states that the yellow 

 lateral spots are only noticed after the last moult before 

 pupation, and that the general resemblance of the larva 

 as regards colour is to the faded leaves of its food-plant, 

 a species of Dombeia" 



The forked caudal horn in the young larva of this 

 species is of interest in connection with the similar 

 character of this appendage in the young caterpillar of 

 Hyloicns Pinastri, p. 265. 



