MACROGLOSSUM. 365 



varying from chocolate to ochreous-brown ; the dor so -lateral 

 stripe pale body-colour, edged with darker brown, most distinct 

 on anterior segments ; a dark brown dorsal stripe ; dots paler 

 body-colour ; broad, broken supra- and subspiracular stripes ; 

 venter brown. Spiracles as in green form, but darker in colour. 

 Length 42 mm. ; breadth 5 mm. ; horn 9' 5 mm. 



Pupa. — Tip of tongue spatulate ; antenna slightly longer 

 than fore leg ; no coxal piece. Surface shining ; head, 

 thorax and wing-case smooth, veins of wings prominent, 

 abdomen shallowly, irregularly corrugate ; front bevel of 

 segment 9 rugose. Cremaster elongate -triangular, tip narrowly 

 truncate, with a setiferous tubercle at each lateral angle. 

 Colour pinkish bone -colour, head and thorax with a greenish 

 tinge, the head, thorax and wing-case blotched with fuscous ; 

 a black dorsal stripe on thorax ; a diffuse olive -green dorsal 

 stripe on abdomen ; bottom of corrugations and front bevels 

 of abdominal segments rusty. Cremaster black. Length 

 38 mm. ; breadth 10 mm. 



Habits. — Food-plant : Morinda citrifolia Linn., family 

 Rubiacese. The larva turns pinkish (in the green form) and 

 pinkish-yellow (in the dark-coloured forms) before pupation. 

 The moth, if alarmed when at rest, makes a deep, low, hum- 

 ming note. It may be seen feeding in the morning and evening. 



123. Maeroglossum belis (Linn.). (Fig. 94, imago; PI. XI, 

 fig. 9, larva, fig. 10, pupa). 



Sphinx belis, Linnaeus, 1758, p. 493 ; Cramer, 1776, p. 147, pi. xciv, 



fig. C (China). 

 Macroglossa belis, Moore, 1884, p. 234 (Cachar) ; Swinhoe, 1885 A, 



p. 287 (Belgaum ; Sattara ; Bombay) ; id., 1886, p. 434 



(Mhow) ; id., 1888, p. 117 (Karachi) ; Hampson, 1892, p. 113 ; 



Dudgeon, 1898, p. 417 (Sikkim ; Bhutan ; up to 3,000 ft.) ; 



Nurse, 1899, p. 513 (Cutch). 

 Maeroglossum belis, Roths. & Jord., 1903, p. 637 ; Seitz, 1929, 



p. 557, t. 65 a. 

 Macroglossa opis, Boisduval, 1875, p. 345 (Silhet ; Darjiling). 



Imago. — <£$. End-segment of antenna about as long as the 

 five preceding segments together. Abdomen with three 

 cadmium -yellow side-patches, separated from each other, the 

 first smallest, transverse, fifth segment with a lateral, sixth 

 with a dorso-lateral, and seventh with a mesial patch of dark 

 brown or black ; tips of side-tufts white. Fore wing with two 

 antemedian lines, interspace filled up, but the band not 

 prominent ; first and second discal line evenly curved costad 

 in front, the second heavier than the first, interspace partly 

 filled up with dark scaling, the lines straight behind or in- 

 curved ; dark subapical patches not prominent, grey costal 

 space at its proximal side sharply limited at R 1 . Hind wing 

 with cadmium-yellow median band, basal and distal border 



