176 SPHINGID^l. 



spot large. Hind wing red, much shaded with brown distally, 

 anal mark large. Underside : the brown discal line of fore 

 wing distinct from costa to below middle, separating a narrow 

 grey band from the grey discal area, the disc proximally of 

 this line washed with brown, more so in £ than in $. On the 

 hind wing the interspace between the two proximal median 

 lines filled in with brown, this band crossing tip of cell ; the 

 brown line beyond this band very distinct ; terminal area 

 contrasting strongly with the greyish discal band, the discal 

 line which forms the boundary of the dark terminal area 



Fig, 36. — Marumba gaschkewitschi gaschkeivitschi B. & G., <$. 



diffuse. Colouring of underside brighter in $ than in $. 

 Expanse : <$ 84-90 mm. : $ 92-102 mm. 



Hab. E. Himalayas and China (Yunnan). Early stages not 

 known. 



40. Marumba cristata cristata (Butler). (Fig. 35 A-C, geni- 

 talia). 



Triptogon cristata, Butler, 1875, p. 253 (Darjeeling). 



Marumba cristata, Roths. & Jord., 1903, p. 272. 



Marumba cristata cristata, Jordan, 1911, p. 241, t. 42 e ; Seitz, 1928, 



p. 538 ; id., 1929, p. 571. 

 Polyptychus dyras, Hampson (non Walk.), 1892, p. 69. 



Imago. — <£$. This sombre-coloured insect is very constant 

 and cannot easily be confused with other species. The 

 uniform colour of the upperside, the heavy black mesial line 

 of the body, the simple lines of fore wing, the presence of a small 

 creamy stigma on fore wing, the absence of the first anal 

 spot from the hind wing, and the rosy tint of the underside 

 separate cristata at a glance from the other species of Marumba. 

 Antenna less than one -third length of fore wing, thinner than 

 in dyras ; in $ grooved, the seriate basal cilia of the middle 

 segments nearly as long as the segments. Tarsi very stout. 

 Expanse : $ 100 mm., $ 120-124 mm. 



