MR. A. G. BUTLER ON THE SPHINGIDA. 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 antenne at once distinguish it from 
Perigonia. 
Doubtful Spine x. 
Genus Arcronotus!, Boisduval. 
Arctonotus, Boisduval, Ann. Soc. Ent. France, 2™ ser. x. p. 319 (1852). 
ARCTONOTUS LUCIDUS. 
Arctonotus lucidus, Boisduval, Ann. Soc. Ent. France, 2™° sér. x. p. 319 (1852). 
California. B.M. 
Genus CoLax, Hiibner. 
Colax, Hiibuer, Verz. bek. Schmett. p. 141. (1816). 
CoLAX APULUS. 
Sphine apulus, Cramer, Pap. Exot. i. p. 8, pl. 88. fig. E (1779). 
Colax apulus, Hibner, Verz. bek. Schmett. p. 141. no. 1513 (1816). 
Smerinthus apulus, Walker, Lep. Het. viii. p. 255. no. 20 (1856). 
Surinam. 
Allied apparently to nothing else; it is best placed near the Sphinx australasie 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 (Noctuide). 
Genus CLANIs (part.), Hiibner. 
Clanis (part.), Hiibner, Verz. bek. Schmett. p. 138. gen. 4 (1816). 
CLANIS ACHEMENIDES. 
Sphinx achemenides, Cramer, Pap. Exot. iii. pl. 225. fig. C (1782). 
Clanis achemenides, Hiibner, Verz. bek. Schmett. 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 
* T would rathersee this genus among the Bombycid@ than in the Sphingide ; I believe it has about as much right 
to be in the latter family as the Geometrine genus @nochromia, which has even a more Sphingoid appearance ; 
however, as I am not acquainted with the early stages of Arctonotus, I leave it provisionally at the end of the 
Sphingide. 
