

LEPIDOPTERA HETEROCERA. 1329 



streaks are parallel to the length of the wing ; exterior border with a 

 deep notch between two shallow excavations, somewhat angular in 

 front. Hind wings pale brown towards the base, and with an angu- 

 lar pale brown exterior band ; exterior border with two broad shal- 

 low excavations ; tails short, acute, parallel to the length of the 

 wing. Length of the body 17 lines ; of the wings 62 lines. 



Brazil. In Mr. Saunders' collection. 



2. Dyscemonia Boreas. 



Mas. Pallide fusca ; abdomen fasciis pallide luteis ; alee anticce 

 apud medium rufescentes, costa basali plagaque interiore albi- 

 dis, maculis duabus anterioribus vitreis, plaga discali maculis 

 exterioribus fasciisque quatuor fuscis fasciis 2a et 4a antice 

 dilatata, Sa antice undulosa, 4a marginali ; posiica: postice 

 rufescentes gutta discali limpida, fasciis tribus posterioribm 

 variis caudisque fuscis. 



Dysdssmonia Boreas, Hiibn. Verz : SchmetL (Phalama Sphingoides 



Echidnce Caudatce)* 151, 1584. 

 Phalaena-Bombyx Attacus Boreas, Cram. Pap. Exot. i. 110, pi. 70, 



f. B. Gmel. ed. Syst. Nat. i. 5, 2404, 471. 

 Bombyx Boreas, Fabr.'Sp. Lis. ii. 170, 14 ; Mant. Ins. ii. 109, 16. 



Ent. Syst. iii. 1, 413, 21 . Oliv. Enc. Meth. Ins. v. 29, 19. 



Male. Body rather slender. Abdomen not extending near so 

 far as the hind wings. Wings broad. Fore wings falcated, slightly 

 convex in front, truncated at the tips, concave behind the tips. 

 Hind wings rather broader than the fore wings ; each with a mode- 

 rately long tail, which increases in breadth to its tip. 



West Indies. 



Fcem. Pallide cervina ; corpus crassum ; proboscis distincta, ca- 

 pitis latitudine multo brevior ; palpi validi, caput vix su- 

 perantes ; antenna nigricantes serrata, ramis fasciculatis ; 

 ala fasciis tribus fuscis unaque ferruginea ; antica? maculis 

 duabus parvis discalibus vitreis fusco marginatis, maryine ex- 

 teriore ferrugineo subexcavato ; postica margine exterior e 

 snbindentato , caudis obliquis apice obtusis postice excavatis, 

 macula vitrea minima. 



Female. Pale fawn-colour. Body very stout. Proboscis dis- 

 tinct, much shorter than the breadth of the head. Palpi stout, ex- 

 tending very little beyond the head. Antennae blackish, serrated ; 

 the branches tufted. Wings with one ferruginous and three slender 



