222 SPHINGID^]. 



antenna, separating face from cheek ; ^a broad dark green 

 dorsal stripe from vertex to nape. Body : segments 2 to 4 

 pale green, rest of body darker green, tubercles white ; a broad 

 dorsal stripe, dark green on 2 to 6, then greenish -brown 

 to base of horn, edged below by a diffused white stripe and 

 broken at segment margins ; seven narrow oblique stripes, 

 white or pale yellow, edged narrowly above by reddish- 

 brown, the stripe on 11 more prominent than the rest and 

 running back to base of horn. Horn green with brown 

 tubercles ; legs green, end-segment reddish, prolegs and 

 claspers green, anal flap green, the small tubercles brown and 

 the large subdorsal one green. Spiracles oval, with the 

 central slit whitish, edged on each side with greenish -brown, 

 the whole enclosed in a larger oval of pale green. Length 

 60 mm. ; breadth 9 mm. ; horn 7 mm. 



Pupa. — Slender in build ; head very small, the eye very 

 low and near front of pupa ; tongue shorter than fore leg 

 and antenna. Surface smooth and shining. Cremaster 

 channelled dorsally and ventrally ; two small dorso-lateral 

 teeth , one near base, one near tip. Colour brown ; head, 

 thorax and wing-cases darker brown. Length 30 mm. 



Habits. — Food-plant : Betula alnoides Ham., (birch), family 

 Betulaceas. The larva raises the head and front segments 

 when resting or alarmed, and strikes sideways with the head. 

 Pupation takes place underground. The moth sometimes 

 emerges as soon as two weeks after pupation. 



■60. Cypa ferruginea Walk. (Fig. 56, 9 holotype). 



Cypa ferruginea, Walker, 1864, p. 42 (Cevlon) ; Moore, 1882, p. 8, 

 pi. lxxix, fig. 3 (9); Hampson, 1892, p. 72; Jordan, 1931, 

 p. 237. 



Cypa decolor ferruginea, Roths. & Jord., 1903, p. 298 ; Seitz, 1928, 

 p. 542. 



Imago. — " The $ not known, one $ in the British Museum. 

 In this specimen the distal margin of fore wing somewhat convex 



Fig. 56.— Cypa ferruginea Walk., $. holotype. 



in centre, but otherwise with hardly a trace of dentition. 

 Palpus small as in C. 2 m ^ ens - Antenna more distinctly 

 incrassate behind middle, slightly constricted at the joints, 



