ACHERONTIINiE. 41> 



Pupa. — Variable in shape ; tongue reaching tip of wing- 

 case, or shorter, not shorter than fore leg, though equal 

 to it in Dolbina ; in a free sheath in Herse and some other 

 genera ; spiracle of segment 2 covered by a large lobe pro- 

 jecting from the front margin of segment 3. 



Cosmopolitan, with three tribes, of which the third comes 

 very near the Ambulicin^: in several respects — Acherontiini^ 

 Sphingini, Sphingulini — and eleven Indian genera. 



Key to the Genera. 



Imagines. 



1. Hind wing yellow ; fore wing upperside 



blackish ; a tw death's-head " mark on [p. 52. 



thorax ; expanse 90-130 mm Acherontia Lasp., 



Hind wing dusky, reddish-brown or rufous. 2. 



2. Abdomen with pink or yellow side-patches . 3. 

 Abdomen without side -patches 4. 



3. Side-patches of pink colour Herse Oken, p. 60. 



Side-patches of yellow colour Psetjdodolbina, 



4. Fore wing upperside dark brown with a [Roths., p. 86. 



curved yellow streak from apex con- 

 tinued as a very dentate line to outer [p. 81. 



angle ; expanse 136 mm Apocalypsis Butl., 



Fore wing never so marked 5. 



5. Thorax covered with long hairs ; fore 



tarsus with three claws ; fore wing red- 

 brown with a large white discal spot ; [p. 85. 



hind wing rufous Pentateucha Swinh., 



Thorax not hairy 6. 



6. Fore tibia with one naked thorn at end ; [& Jord., p. 93.. 



fore wing upperside grey Dolbinopsis Roths. 



Fore tibia without apical thorn ; fore 



wing upperside grey or brown 7. 



7. Thorax with a " death's-head " mark .... Dolbina Stgr., p. 94. 

 Thorax without " death's-head " mark . . 8. 



8. Thorax very long, extending far beyond 



base of fore wing ; the tornal angle of 

 fore wing produced ; a black discal streak 

 under R 1 of fore wing reaching outer [Jord., p. 65. 



margin Megacorma Roths. & 



Thorax of normal length ; black streaks 

 under R 1 and M 1 usually present 9. 



9. Upperside grey, with a large subapical 



costal patch outlined with black ; expanse [& Jord., p. 77. 



over 100 mm Psilogramma Roths. 



No such subapical costal patch 10. 



10. Upperside grey, hind wing reddish-brown ; 

 tibiae not spiny, spurs very short ; ex- 

 panse under 100 mm Sphinx Linn., p. 92. 



Upperside brown or grey ; yellow or white [p. 69. 



side-patches except in arxalis Meganoton Boisd., 



Larvae. 



1. All segments except the head, segment 2 



and anal segments bearing long fleshy [p. 82» 



spines Apocalypsis Butl., 



VOL. V. E 



