MR A. G. BUTLER ON THE SPHINGID^. 627 



The abdomen and secondaries of the type are wanting, so that is impossible to decide 

 positively as to its position ; the long whip-like antennae at once distinguish it from 

 Perigonia. 



Doubtful Sl'HlNGID-E. 



Genus Arctonotus 1 , Boisduval. 

 Arctonotus, Boisduval, Ann. Soc. Ent. France, 2 lnc ' scr. x. p. 319 (1852). 



Arctonotus lucidus. 

 Arctonotus lucidus, Boisduval, Ann. Soc. Ent. France, 2 mc ser. x. p. 319 (1852). 



California. B.M. 



Genus Colax, Hiibner. 

 Colax, Hiibner, Verz. bek. Schmett. p. 141. (1816). 



COLAX APULUS. 

 Sphinx apulus, Cramer, Pap. Exot. i. p. 8, pi. 88. fig. E (1779). 

 Colax apulus, Hiibner, Verz. bek. Sclimett. p. 141. no. 1513 (1816). 

 Smerintkus apulus, "Walker, Lep. Het. viii. p. 255. no. 20 (1856). 



Surinam. 



Allied apparently to nothing else ; it is best placed near the Sphinx australasice of 

 Donovan, so far as I can judge by Cramer's figure. Mr. Walker suggests its possible 

 affinity to the genus Calliomma ; but the structure of that genus seems quite distinct. 

 It may perhaps be a Corymbia (Noctuida;). 



Genus Clanis (part.), Hiibner. 

 Clanis (part.), Hiibner, Verz. bek. Schmett. p. 138. gen. 4 (1816). 



Clanis achemknides. 



Sphinx achemenides, Cramer, Pap. Exot. iii. pi. 225. fig. C (1782). 

 Clanis achemenides, Hiibner, Verz. bek. Sclimett. p. 138. no. 1482 (1816). 

 Pachylia achemenides, Walker, Lep. Het. viii. p. 191. no. 4 (1856). 



Surinam. 



As I have never seen the species figured by Cramer, and as it differs too much from 



1 I would rathorseothisgonusamongthoZ?omfy/c<YZ ntWaxiiwiho Sphingidte ; I behove it has about as much right 

 to be in tho latter family as the Gcometriuc genus (Enochromia, which has even a more Sphingoid appearance : 

 however, as I am not acquainted with tho early stages of Arctonotus, I leave it provisionally at the end of the 

 Sphingidoe. 



