PLUME-MOTHS OF CEYLON. '25 



The full-grown larva (suspended for pupation) is about 13 mm. 

 long by about 1*2 mm. broad, being cylindrical, slender, shining, 

 and appearing quite smooth and naked. There are two principal 

 colour varieties : — (i.) Wholly pale green without any noticeable 

 markings except a narrow darker medio-dorsal stripe, and this is 

 perhaps due to the vessels beneath showing through the skin rather 

 than to any dermal pigmented area. Towards the anal extremity 

 a pinkish suffusion is seen along the segmental interstices, (ii.) 

 Very pale, semi-transparent, pinkish flesh-colour ; interstices of 

 segments very pale, semi-transparent green, as are also some 

 patches along the sub-median area of most of the segments, 

 but the pale green and pink so merge into one another that no 

 definite areas can be described. Head very pale green. A pale 

 red medio-dorsal line. But some larvae have no green markings, 

 being wholly pink. The prolegs are very small and stumpy ; 

 hooks dark reddish. The hooks on the fourth pair of prolegs are 

 attached into the silken pupation-pad. The arrangement of the 

 tubercles is shown in the figure. (Plate E. , figure 9.) 



Pupation. — The larva pupates very rapidly ; twelve hours is 

 sufficient for it to emerge from the fruit, select a suitable place for 

 pupation, suspend itself, and complete its metamorphosis. 



Pupa. — The newly-formed pupa is of a bright fight green colour, 

 the capital extremity tinged with yellowish-brown about the base 

 of the antenna-sheath ; but it soon becomes of an almost uniform 

 reddish gray-brown. 



Imago. — The moth, which usually seems to emerge early in the 

 morning, appears after six days. 



Oxyptilus regulus, Meyr. 



B. J., XVII., 135. 



Distribution.— Maskeliya. Only recorded from Ceylon. 



Early Stages. — The life-history is unknown. 



Observation.— This is apparently a very rare species. I have seen 

 no specimens. 



Oxyptilus regalis, n. s. 



3 Exp. 14-16 mm. Head and thorax fuscous with a few inter- 

 mixed whitish scales, vertex with a loose tuft of erected elongate 

 scales which do not form a regular cone. Palpi whitish, mixed with 

 blackish, second joint reaching middle of face, terminal joint 

 slightly shorter than second. Antennae anteriorly whitish striated 

 with blackish, posteriorly pale fuscous. Abdomen fuscous with a 



B 7(6)09 



