586 MR. J. H. LEECH ON THE [DcC. 18, 



Pryer's collection. These are without locality labels, but bear his 

 catalogue number (8), and are most probably from Yokohama. In 

 the entire series there are examples agreeing with 8. sperchius, Men., 

 others with T.piceipennis, Butl., and others again with T. gi.gas,l&\]X\,, 

 whilst in a few the tint of colour, shape, and direction of lines, &c. 

 are not quite identical with either. As I do not feel justified in 

 describing these as distinct, I am obliged to consider them and also 

 the three aberrations named and described as forms of one species. 



22. Triptogon complacens. 



(S . Smerinthus complacens, Walk. Cat. Lep. Het. Suppl. i. p. 40 

 (1864). 



2. Smerinthus dyras, var. /3, Walk. Cat. Lep. Het. viii. p. 251 

 (1856) ; Bull. 111. Typ. Lep. Het. pt. iii. p. 2, pi. xli. fig. 4. 



Triptogon roseipennis, Butl. Proc. Zool. Soc. 1875, p. 257 ; 

 Trans. Zool. Soc. ix. p. 588, pi. xci. fig. 6, transformations (1876) ; 

 111. Typ. Lep. Het. pt. iii. p. 2, pi. xli. fig. 3 (1879). 



? Smerinthus gaschkewitschii, Brem. Beitr. Schm. N. China, p. 13. 



A fine series showing considerable variation in colour. 



Yokohama (^Pryer and Manley) ; Nagasaki {Leech) ; Hakodate. 



23. Smerinthus dissimilis. 



Triptogon dissimilis, Brem. Bull, de I'Acad. Sci. St. Petersb. 

 1864, tom. iii. 



Smerinthus dissimilis, Brem. Lep. Ost-Sib. p. 35, pi. iii. fig. 12 

 (1864). 



This is no. 5 of Pryer's catalogue, and there were three examples 

 in his collection, two of which were from Tokio and one with aborted 

 hind wings, probably a bred specimen, from Oiwake. In colour all 

 three differ from a specimen I have from Kiukiang, but the 

 markings are exactly alike in all four. Japanese examples agree 

 better with Amur specimens in colour. 



Tokio, Oiwake {Fryer) ; Kiukiang (Pratt) ; Ussuri (Bremer). 



24. Smerinthus christophi. 



Smerinthus christophi, Staud., Rom. Mem. sur Lep. iii. p. 162, 

 pi. ix. fig. 3 a, b, & pi. xi. fig. 1 (1887). 



This species appears to be closely aUied to S. tilice, Linn. 

 Fujisan, Yesso (Pryer) ; Amur. 



25. Smerinthus tatarinovii. 



Smerinthus tatarinovii, Bremer, Motsch. Etud. Ent. 1852, p. 62. 

 Smerinthus eversmanni, Popoff, Bull. Soc. Imp. Nat. Mosc. 1S54, 

 ii. p. 182, pi. 1. fig. 5. 



Pryer says this species is not uncommon about Yokohama, but 

 there were only four examples in his collection ; of these one has the 

 primaries suffused with pink and the central band and apical patch 

 are russet-brown. Six other specimens in his series are from Yesso, 

 and are much smaller and paler in colour. 



Yokohama (Pryer and Manley) ; Yesso (Pryer). 



