CLANIS. 149 



32. Clanis deucalion (Walk.). (Fig. 30, ?). 



Basiana deucalion, Walker. 1856, p. 237 (N. India, 2). 



Clanis deucalion, Butler, 1881 B, p. 15, pi. lxxxi, fig. 5 (N. India) ; 



Roths. & Jord., 1903, p. 215 ; Seitz, 1928, p. 536. 

 Ambulyx deucalion, Hampson, 1892, p. 80. 



Imago. — <£$. In colour closely resembles undulosa, with 

 which it agrees in the mid-tibia not being white above like the 

 hind tibia, and in the presence of a black streak on underside 

 of fore wing. Differs from undulosa in the fore wing upper- 

 side having three sharply marked dentate lines on disc, equi- 

 distant from each other and from cell and the postdiscal, 

 indistinct line which begins at the apical patch ; no pale 

 line before R 3 and no pale costal area. The black patch 

 on hind wing more restricted, longer at SM 2 than at R 3 ; 

 tawny-brown scales between this patch and apex of wing. 



Fig. 30. — Clanis deucalion (Walk.), 2. 



Fore wing less elongate than in undulosa ; hind tibia as long 

 as first tarsal segment, and this barety longer than 2 to 5 

 together ; terminal pair of spurs very unequal, shorter than 

 in undulosa, the long one only half length of first tarsal segment. 

 Expanse : £ 104-116 mm., $ 124 mm. 



Genital armature as in undulosa, but the lobes of tenth 

 tergite more slender, and sternite rounded. 



Hab. W. and E. Himalayas. We have bred specimens 

 obtained at Mussooree by Col. J. D. Campbell, D.S.O., R.E., 

 at an elevation of about 7,000 feet. Rare and local. 



Larva : — 



Final instar. Head large, broadlv rounded-triangular ; 

 a large rounded tubercle on apex of each lobe ; clypeus 

 acutely triangular, about one-third length of head ; labrum 

 long and very narrow. Surface of head moderately shining, 

 covered with low, rounded, shining tubercles. Body short 



