1220 CATALOGUE OF 



h- ? From Mr. Children's collection. 



i 9 j. Silhet. From Mr. Sowerby's collection. 



Jc. Ceylon. From the Rev. J. Wenham's collection. 



Group 2. 

 Corpus gracilius. Antennae thorace non breviores. Alas 

 amplae, macula angusta lunata vitrea fasciaque semihvalina ; an- 

 tic® falcatae, apud costam convexae, margine exteriore obliquo un- 

 duloso ; postica3 valde latiores quam longa?, macula vitrea praaser- 

 tim arcuata. Mas.— Antennas latissime pectinatse, ramis ciliatis 

 duplicatis aequaliter longis. 



Body more slender than in any of the other groups of Attacus, 

 Antennas as long as the thorax. Abdomen not extending to one- 

 fourth of the breadth of the hind wings. Wings ample ; each with 

 a narrow lunate vitreous spot, and a semihyaline band which ex- 

 tends from much beyond the middle of the costa of the fore wings 

 to very near the end of the interior border of the hind wings. Fore 

 wings convex along the costa, falcate at the tips, oblique and un- 

 dulating along the exterior border. Hind wings very much 

 broader than long, very much broader than the fore wings ; vitreous 

 spot much more curved than that of the fore wings. Male.— An- 

 tennas extremely deeply pectinated; branches of equal length, slen- 

 der, ciliated, in pairs. 



This group in the shape of its wings is almost similar to the 

 other Asiatic form, which may be considered as the type of the 

 genus, but the American groups have more resemblance to the latter 

 in the colouring of the wings and in the form of the vitreous spot. 



17. Attacus Cynthia. 



Ales fasciata luteo-fuscce, fascia communi albida striga basati 

 lunulaque discali ; anticce ocello parvo apicali. 



-, UAubent. III. pi. 42, f. 1. 



Phalaena Attacus Cynthia, Drury, App. ii. Cram. Pap. Exot. i. 



62, pi. 39, f. A. Roxb. Linn. Trans, vii. 42. Buchanan, 



Decer. Dinajpur, 214. 

 Bombvx Cynthia, Oliv. Enc. Metk. v. 30, 26. 

 Saturnia Cynthia, Westw. ed. Drury, ii. 12, pi. 6, f. 2. Heifer, 



Journ. Asiat. Soc. Bengal, vi. 4*5, 9. 

 Samia Cynthia, Hubn. Verz. Schmett. (Phalcence Sphingoides 



JEchidnce Speculares), 156, 1629. 



