32 bombycid^;. 



Key to the Genera. 



a. Hind wing- with vein 8 from the base of 7, and 



no bar between them. 

 «'. Palpi present. 



cr. Fore wing with veins 7, 8, 9 but slightly 

 bent downwards. 

 ft 3 . Fore wing with veins 6 and 11 from 



the cell 1. Bombyx, p. 32. 



b 3 . Fore wing with veins 6 and 11 stalked 



with 7, 8, 9, 10 2. Ectrocta, p. 33. 



b 2 . Fore wing with veins 7, 8, 9 much bent 



downwards 3. Ocinara, p. 34. 



b'. Palpi absent. 



a' 2 . Fore wing with a veinlet in the cell ; veins 



7, 8, 9 much bent downwards 4. Guxda, p. 36. 



b 2 . Fore wing with no veinlet in the cell ; 



veins 7, 8, 9 not much bent downwards , 5. Theophila, p. 37. 



b. Hind wing with vein 8 free from the root, and 



a bar between it and vein 7 ; fore wing with 



veins 7, 8, 9 not bent downwards, 

 ft'. Fore wing with vein 6 stalked with 7, 8, 



9 ; 10 6. Mustilia, p. 38. 



b'. Fore wing with vein 6 from the angle of cell. 7. Andraca, p. 40. 



Genus BOMBYX. 

 Bombyx, Hiibn. Verz. p. 190 (1818). 



Type, B. mori, Linn. 



Range. Japan ; China ; and introduced into India, Europe, &c. 



Palpi slight. Pore wing with the outer margin excised below 

 the apex and slightly angled; veins 6 and 11 from the cell; 7, 8, 

 9, 10 stalked together ; 7, 8, 9 but slightly bent downwards. Hind 

 wing with vein 5 from above the centre of the discocellulars ; 

 veins 6 and 7 on a short stalk ; no bar between veins 7 and 8 

 near base. 



34. Bombyx mori, Linn. Syst. Nat. i, p. 817 ; C. $ S. no. 1098. 



Bombvx croesi, Mutt. Trans. JEnt. Soc. (3) ii, 1864, p. 312 ; C. $ S. 



no. 1095. 

 Bombvx fortunatus, Hutt. Trans. JEnt. Soc. (3) ii, 1864, p. 312 ; 



C. | S. no. 1096. 

 Bombvx sinensis, Hutt. Trans. Ent. Soc. (3) ii, 1864, p. 313 ; C.$S. 



no. 1099. 

 Bombvx textor, Hutt. Trans. Ent. Soc. (3) ii, 1864, p. 309 ; C. & S. 



no. 1100. 

 Bombvx arracanensis, Hutt. Trans. Ent. Soc. (3) ii, 1864, p. 313; 



C. |- S. no. 1094. 



d . Head, thorax, and abdomen whitish. Pore wing whitish ; 

 two dark antemedial lines ; a line across the end of cell ; a post- 



