LEPIDOPTERA HETEEOCERA. 1223 



wings falcate at the tips, undulating and very oblique along the ex- 

 terior border ; interior angle rounded ; discal areolet open ; three 

 inferior veins ; first and second contiguous; third very remote. 

 Hind winu r s very much broader than the fore wings. Female, — 

 Body stout. Antennae deeply pectinated, otherwise like those of the 

 male. Abdomen extending to half the breadth of the hind wings. 

 Fore wings hardly falcate ; exterior border much less oblique and 

 undulating than that of the male. Hind wings not so broad. 



In this genus the colouring of the wings much resembles 

 in design that ui' Attacus, but the hind wings of the female are not 

 dilated, and there is no trace of a vitreous spot. 



A. Alas maris nigricantes. 



A. Alae anticse macula discali. 



a. Alas anticae macuia discali rufa. - - Cecropia, Linn, 



b. Abe anticae macula discali alba. - - Calleta, Westw. 



B. Ala? anticse macula nulla discali. - - Promethea, Drury. 



B. Alae antics fuscae. - angulifera, Walk. 



I. Samia Pbomethea. 



Alee subfalcatcB margine cinerece, maris nig rce, faem. ferruginea; 

 anticce utrinque ocello atro. 



Phalaena-Bombyx Attacus Promethea, Drury, III. Ins. ii. pi. 11, f. 



1, 2, mas. ; pi. 12, f. 1, 2, teem. App. ii. Cram. Pap. Exot. i. 



118, pi. 75, f. A, B, teem.; pi. 76, f. A, B, mas. GmeL 



ed. Syst. Nat. i. 5, 2403, 464. Pal. Beauv. Ins. Afr. et Amer. 



Lep. pi. 21. Abbot and Smith, Lep. Ins. Georg. i. pi. 46. 

 Bombyx Promethea, Fabr. Syst. Ent. 558, 7; Sp. Ins. ii. 168, 8 ; 



Mant. Ins. ii. 108,9; Ent. Syst. iii. 1,411, 12. Oliv. Enc, 



Meth. v. 27, 12. 

 Saturnia Promethea, Westw. Ed. Drury, ii. 20, pi. 11, fl, 2 ; pi. 12, 



f.1,2. 

 Samia Promethea, H'ubn. Verz. Schmett. (Phalcence Sphingoides 



Echidnas Speculares) 156, 1631. 



a — c. North America. Presented by H. Doubleday, Esq. 

 d — h. North America. Presented by E. Doubleday, Esq. 

 i. ? 



