ME. A. a. BUTLEE ON THE SPmNGID^. 



587 



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

 name {S. di/ras 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 " Sm. dyras " (sic), very legibly inscribed 

 in Dr. Boisduval's handwriting. 



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

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

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

 verse lines. 



7. Teiptogon sinensis. 



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

 Hong Kong {Harrington). 



8. Teiptogon javanica. 



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

 Java [Ilorsfield). 



Type, B.M. 



<?$, B.M.;'?, coll. F. Moore. 



9. Triptogon cetlanica. 



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

 Smerinthus dyras d , 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. 

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



Type, B.M. 



B.M. 



11. Triptogon oeiens. (Plate XCIII. fig. 3.) 

 Triptogon oriens, Butler, P. Z. S. 1875j p. 355. no. 45. 

 N.E. India. 



Type, coll. F. Moore. 



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

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

 Massuri (Button). 



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. 



