MR. A. G. BUTLER ON THE SPHINGHLE. 583 



2. Metamimas amboinicus. 



Smerinthus amboinicus, Feldcr, Sitz. Akad. Wiss. Wien, xliii. p.29. no. 63 ; Reise der Nov., Lep. iv. 



tab. 78. fig. 1 (Nov. 1874). 

 Smerinthus amboiniens (sic), Walker, Lep. Het., Suppl. i. p. 41 (1864). 

 Amboina. 



Genus 2. Mimas ', Hiibner. 

 Mimas, Hiibner, Verz. bek. Scbmett. p. 142. gen. 2 (1816). 



1. Mimas quercus. 



Sphinx quercds, Denis, Wien. Verzeichn. p. 4, tab. la. figs, la, 16, tab. 1 6. fig. 1. 

 Polyptychic querctis, Ilubncr, Verz. bek. Schmett. p. 141. no. 1518 (1816). 

 Smerinthus querctis, Godart, Hist. Nat. Lep. France, iii. p. 181, pi. 17. fig. 3. 

 Merinthus querctis, Mcigcn, Syst. Besclir. eur. Scbmett. ii. p. 150. no. 4, pi. 78. fig. 5. 



Europe (Becker). B.M. 



2. Mimas tille. 



Sphinw tilice, Linnaeus, Syst. Nat. i. 2, p. 797. no. 3 (1766). 

 Mimas tilice, Hiibner, Verz. bek. Scbmett. p. 142. no. 1522 (1816). 

 Smerinthus tilice, Godart, Hist. Nat. Lep. France, iii. p. 61, pi. 20. fig. 1. 

 Merinthus tilice, Mcigen, Syst. Beschr. eur. Schmett. ii. p. 149. no. 2, pi. 78. fig. 2. 



Europe (Becker) ; Sierra Leone (Morgan). B.M. 



The antenna? of the male of this species are rather less strongly pectinated than in 

 M. querctis. 



3. Mimas decolor. 



Smerinthus decolor, Walker, Lep. Het. viii. p. 255. no. 19 (1856) ; Schaufuss, Nunquam Otiosus, i. 

 p. 11 (1870-71). 



Darjeeling (Grote). Coll. F. Moore. 



Mr. Walker says that this species possesses the " structure of S. tilia?" The second- 

 aries, however, differ slightly; and the costa of primaries is not quite so much arched. 

 In the outline of the outer margin it agrees better with M. quercth. 



Genus 3. Polyptychus, Hiibner (restricted). 

 Polyptychic, Hiibner, Verz. bek. Scbmett. p. 141. gen. 2 (1816). 



1. Polyptychus dentatus. (Plate XCI. fig. 10.) 



Sphinx dentata, Cramer, Pap. Exot. ii. p. 42, pi. 125. fig. G (1779). 



1 Easily distinguished from Laothoe by the form of the wings, the outer margin of secondaries deeply exca- 

 vated below the apex, and the secondaries narrow and not denticulated. The type is M. tilia: 



vol. ix. — part x. No. 10. — November, 1876. 4 i 



