THE LEPIDOPTEEA OE CEYLON. 



Section HETEROCERA. 



Family SPHINGIDiE. 



Forewing long, narrow ; submedian vein "witii a lower basal branch. Hindwing 

 small ; with, tlie subcostal and costal veins joined together by a short transverse 

 subbasal spur. Palpi broad, compressed, terminal joint minute; antennae more or 

 less prismatic, gradually thickened towards the middle, and with a slender ciliated 

 tip ; proboscis in some species extremely long. Flight very powerful ; crepuscular 

 and diurnal. 



Larva cylindrical, either naked or covered with minute granular tubercles ; 

 furnished with a dorsal horn on 11th segment. Pupa beneath the earth, or in a 

 light cocoon on the surface. 



Subfamily SPRINGING. 



Imago Choerocampine in form, but with the head generally smaller, the thorax 

 variable in length ; proboscis very long. 



Larva with the anterior segments very slightly smaller than the posterior ; 

 generally marked with oblique lateral stripes ; horn (when present) rather long ; 

 head tolerably large ; position, when in repose, almost sigmoidal. Pupa frequently 

 with an external sheath for the proboscis. (Butler.) 



Genus NEPHELE. 



Nephele, Hiibner, Verz. bek. Schmett. p. 133 (1818-25). 



Zonilia, Walker, Catal. Lep. Het. Brit. Mus. viii. p. 192 (1856); Boisd. Spec. Gen. Lep. Het. p. 139 (1874). 



Forewing moderately short and broad ; costa slightly arched towards the end, 

 apex pointed, exterior margin oblique, even, slightly convex in middle ; costal vein 

 long ; first subcostal branch emitted at one-third, second at one-fifth before end of 

 the cell, and extending to near apex, fourth from below third at one-sixth beyond the 

 cell, fifth from end of the cell ; discocellular inwardly oblique, bent slightly outward 



VOL. II. B 



