172 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



forming a V-shaped mark, begins on joint 9 posteriorly and runs to the 

 posterior edge of joint 11 laterally, being broken at the incisures; 

 there is also a narrow dorsal line of the same color from joint 9 

 to joint 13, wh'ch is indicated on joint 8 by a pear-shaped small orange 

 blotch between the points of the lateral finger-shaped processes ; 

 sides of the horn posteriorly heavily brown mottled, as well as a 

 subventral patch on joint 6 and the area about the spiracle of joint 11. 

 Anal feet small, slender, divergent, brown-mottled. The area around 

 the spiracle of joint 5, especially at tubercles Hi and iv, is roundly 

 protuberant, causing a collar-like appearance of this joint when seen 

 from above. 



As compared with the larva of Hy par pax aurora Smith & 

 Abbot, the general pattern of coloration is similar. The head 

 is larger in the present insect and distinctly exceeds joint 2. 

 The hump on joint 5 is here produced into a horn, but the 

 humps on joint 12 are the same in both. The sides of the 

 thorax are green in both, with brown dorsal stripe. The 

 subdorsal white markings in aurora are all broadened and 

 rounded, filled with brown mottlings, whereas in the present 

 species they are narrowed, clear of filling, and obliquely placed. 

 Tn aurora the rounded white subdorsal markings adorn the 

 abdomen for the entire distance between the two dorsal humps, 

 whereas in the present species these markings are obsolete on 

 joint 6, then brought out strongly in the peculiar finger-shaped 

 mark on joint 8, finally replaced posteriorly by the broken 

 V-shaped line. 



Except for its bizarre pattern, the larva might readily be 

 taken for a species of Schizura, as is indeed the case with 

 Hyparpax aurora. 



