24 HETEROCERA. 
CERATOMIA. 
Ceratomia, Harris, Sill. Journ. xxxvi. p. 298 (1839). 
1. Ceratomia amyntor. 
Agrius amyntor, Hiibn. Samml. ex. Schmett. in. t. 
Ceratomia amyntor, Butl. Trans. Z. 8. ix. p. 621°. 
Hab. Nort America!.—Mexico + (mus. Brit.). 
Fam. CASTNIIDA. 
CASTNIA *. 
Castnia, Fabricius, Syst. Glossat. sec. Illig. Mag. vi. p. 270 (1807). 
Sixty-eight species are included in this genus, all being found in the Neotropical 
Region. Sixteen species occur in our country, two or three of these being of doubtful 
origin, their occurrence in Central America requiring confirmation. 
Prof. Westwood gives very minute details of the structure of this genus in his paper, 
but does not seem to have found sufficient characters to warrant him in adopting the 
separate genera proposed by Boisduval for the several rather distinct-looking forms 
included in it. 
1. Castnia dedalus. 
Papilio dedalus, Cr. Pap. Ex. i. p. 1, t. i. f. A, B’. 
Castnia dedalus, Westw. Trans. L. S. ser. 2, Zool. 1. p. 167 °. 
Papilio cyparissius, Fabr. Gen. Ins. Mant. p. 257 °. 
Hab. Panama, Chiriqui (Arcé, mus. D.).—Ecuapor (mus. D.); Guiana, Surinam }; 
Upper Amazons (mus. D.). 
Apparently a common species in Guiana and the Amazons valley; thence it spreads 
to the State of Panama, where, however, it would appear to be less abundant, a single 
specimen only having come under my notice. It appears to be unknown in South 
Brazil. 
2. Castnia veraguana. 
Castnia veraguana, Westw. Trans. L. S. ser. 2, Zool. i. p. 168, t. 30. f. 1°. 
Hab. Panama, Veraguas! (Arcé, mus. Oxf.). 
This very fine species is allied to C. cacica, from which it differs in several particulars 
pointed out by the describer. The only specimen with which I am acquainted is the 
type now in the Oxford Museum. This was sent some years ago to Messrs. Godman 
and Salvin from the State of Panama by their collector Arcé. 
* In the arrangement of this genus I have to a great extent followed that of Prof. Westwood in his paper 
on this genus (Trans. Linn. Soc. ser. 2, Zool. i. p. 155 et seqq.). 
