SPHIjN'GID^ of PERU. 89 



Second instar (fig. e). The horn becomes green, only the base remaining black, and 

 is more proportionate to the length of the body. A' medio-dorsal stripe of darker 

 green appears, and tlie seven customary oblique stripes directed towards the tail are 

 discernible in lighter colour. 



Third instar (unfigured). Though often obtained at this stage, no special differences 

 were noted. Had 1, while in Lima, gauged the particular interest attaching to my 

 discovery, I should naturally have completed the illustrations and added fuller notes. 



Fourth instar (fig./). Ground-colour warm yellow-green, darker on ventral area 

 and claspers. Head green, faced with two yellow lines. Anal flap similarly outlined 

 with yellow. Leg-segments warmer in tone and adorned with many small light 

 yellow tubercles. Legs flesh-coloured. Spiracles maroon ringed Avith ochre, but 

 inconspicuous. Caudal horn long and stout, remaining so to the end of the larval 

 period — an essential point of diff'erence between this and the preceding species. It is 

 slightly curved, bent down at the tip, and covered with fine red-brown tubercles. The 

 oblique stripes are now yellow, inclining to white as they reach the dorsal area, 

 and the seventh leading to the horn is, as usual, the most white and prominent. 

 These are adorned above with traces of orange and violet, but never with black dots. 



Fifth instar (fig. (j). No essential diff'erence. Ground-colour either more ochreous 

 or more blue than in previous instar. Generally well protected by its resemblance to 

 the leaf. The small yellow tubercles on the leg-segments have almost, if not entirely, 

 disappeared. Oblique stripes whiter, the seventh still the most pronounced, and each 

 pair is continued dorsally, closing in upon the medio-dorsal duct to form a series of 

 V-shaped marks, and giving the back in some specimens a very light appearance. 

 The paired light facial streaks are retained to the end, but are generally less yellow, 

 and the horn is still adorned with rough brown points. 



Pupa (PI. XV. fig. c). — Bright red-brown and glazed, with two minute points to the 

 broad anal spike. Free proboscis-sheath long, well curved, slightly ridged, but of 

 slender construction, and altogether very similar to the preceding species. 



42 c. Pkotoparce dipfissa tropicalis. (Plate VIII. d.) 

 R. & J. p. 77. 



General Distribution. — Tropical South America from Minas Geraes to Colombia ; 

 not in the Central and Pacific parts of the Andes, except Ecuador and Colombia. 



A species confined to the Interior, not studied, and only figured in the final instar of 

 the larva. In this stage it most resembles P. sexta paphns, but is plainer. Horn 

 small, smooth, pink, and curved. Claspers and anal flap bordered with yellow. 

 Spiracles very dark. Legs cream and black. Seven oblique white stripes edged 

 with black dots above. 



The larva is much subject to the attack of hymenopterous parasites, and was 

 VOL. XX. — part II. No. 3. — April, 1912, N 



