182 MR. J. O. WESTWOOD ON THE LEPIDOPTEROUS 



posticis nigris, medio disci ferrugineo fasciaque pone medium e maculis parvis plus 



minusve obsoletis maculisque nonnullis submarginabbus runs. Long. corp. lin. 



9^-14. Exp. alar, antic, unc. If- 3. 

 ■ Variat disco alarum posticarum omnino nigro, maculisque runs multo minoribus fere 

 obsoletis. 

 Papilio amycus, Cram. iii. pi. 227, D, E. ; Dalnian, Monogr. p. 19 (Castnia a.) ; Act. Holm. 1824, p. 403 ; 



G. R. Gray, Trans. Ent. Soc. L. ii. p. 145 ; Godart, Enc. Meth. ix. p. 798 ; Walker, List Lep. 



Het. B. M. i. p. 27; Boisduval, H. n. Lep. Het. p. 504. 



Obs. As this species differs in the greater or less amount of red markings on the hind 

 wings, I am much inclined to consider the O. meditrina of Hopffer to be an extreme 

 variety in which the red has entirely disappeared. The less acute apex of the fore 

 wings relied upon by Boisduval appears to me to be the sexual (female) character. 



Sab. Surinam, Brazil, Papagaya. In Mus. Britann., Hopeiano Oxonise (7 individua), 

 Boisduval. 



44. Castnia meditrina. " C. alis anticis virescenti-nigris, fascia undulata obliqua gut- 

 tisque ad costam tribus albis ; posticis aterrimis cyaneo micantibus." Expans. alar, 

 ant. unc. 2 lin. 5. 



The hind margin of the fore wings has the dilated patch of elongated scales noticed 

 in the description of the preceding, and to which neither the description of Hopffer 

 nor that of Boisduval allude. 

 Castnia meditrina, Hopffer, Neue Schmett. Heft ii. tab. v. f. 4; Boisduval, H. n. Lep. Het. p. 505. 



An var. C. amyous ? 



Sab. Brasilia. In Mus. Berolini. 



45. Castnia Hubneri. C. alis anticis fulvo-fuscescentibus, fascia maculari plus minusve 



continua e medio costse ad angulum internum extensa alteraque parallela e ma- 

 culis sex magis distinctis inter medium et apicem albis ; alis posticis basi mar- 

 gineque lato abdominali fuscis, dimidio costali rufo-fulvo ; dimidio externo nigro, 

 maculis 7 euneiformibus pone medium irregulariter dispositis, serieque submarginali 

 macularum rufo-fulvarum ; fimbria lata pallide fusca. 



Castnia Hubneri (Boisduval, MS.), Latreille in Cuvier, R. An. 2d ed. iii. pi. 20. f. 2, p. 439; Gray, 

 Trans. Ent. Soc. Lond. i. p. 146; Walker, List Lep. Het. B. M. i. p. 30; Boisduval, H. n. Lep. 

 Het. p. 516. 



Castnia Slernbergii, Kollar, Lep. Bras. Ann. Wien, i. 216, pi. 12. f. 4. 



Synemon Sternbergii, Mikan, Delect. Fl. et Fr. Brasil. ; Schaufuss, Nunquam Otiosus, p. 11. 



Hab. Brasilia. In Mus. Britann., Hopeiano Oxonise, Boisduval. 



46. Castnia jutubna. C. alis anticis fuscis, basi et margine interno griseo-squamosis, 

 fasciis 4 albidis, duabus anticis obliquis, e costa, marginem posticum et externum 

 haud attingentibus, duabus posticis brevioribus magis transversis, 3ta e maculis 

 obcuneatis composita, 4ta venis runs in maculas divisa; alis posticis basi fuscis, 

 macula magna nigra sanguineo cincta, medio fascia alba valde sinuata sanguineo 



