ME. A. G. BUTLEE ON THE SPHESTGlDiE. 



587 



M. Boisduval, in a note on his S. dryas, states that this is the correct spelling of the 

 name (S. dyras being a misprint) ; all I can say is that one of our examples of T. silhet- 

 ensis has attached to it a label bearing the name " 8m. dyras " (sic), very legibly inscribed 

 in Dr. Boisduval's handwriting. 



All the forms of the T. dyras group are at once distinguished from the Smerinthus 

 sperchius of Menetries, by the shortness of their wings, the much less prominently un- 

 dulated outer margin of primaries, and the entirely different disposition of the trans- 

 verse lines. 



7. Triptogon sinensis. 



Triptogon sinensis, Butler, P. Z. S. 1875, p. 254. no. 41. 

 Hong Kong (Harrington). 



8. Triptogon javanica. 



Triptogon javanica, Butler, P. Z. S. 1875, p. 254. no. 42. 

 Java (Eorsfield). 



Type, B.M. 



<J 2 , B.M. ; S , coll. F. Moore. 



9. Triptogon cetlanica. 



Triptogon ceylanica, Butler, P. Z. S. 1875, p. 255. no. 43. 

 Smerinthus dyras 6 , "Walker, Lep. Het. viii. p. 250. no. 13 (1856). 



Ceylon (Templeton). 



10. Triptogon silhetensis. 



Triptogon silhetensis, Butler, P. Z. S. 1875, p. 255. no. 44. 

 3 ? , Silhet, coll. F. Moore ; ? (Stainsforth). 



(2 y ll- Teipt ogon_oriens. (Plate XCIII. fig. 3.) 

 Triptogon oriens, Butler, P. Z. S. 1875, p. 255. no. 45. 

 N.E. India. 



12. Triptogon massurensis. (Plate XCIII. fig. 5.) 

 Triptogon massurensis, Butler, P. Z. S. 1875, p. 256. no. 46. 

 Massuri (Hutton). 



Type, B.M. 



B.M. 



Type, coll. F. Moore. 



Type, coll. F. Moore. 



13. Triptogon fuscescens. (Plate XCIII. fig. 2.) 

 Triptogon fuscescens , Butler, P. Z. S. 1875, p. 256. no. 47. 



Darjeeling. Type, coll. F. Moore. 



This and the six preceding forms are local representatives of T. dyras. 



