16 NovrrATES Zoologicae XXVI. 1919. 



Castnia (Sympalamides) mygdon form, albofasciata Schauf. 



Castnia albofasciata Schaufuss, Nunquam Otiosvs, vol. i. p. 10 (1870) (Brazil). 



The Tring Museum possesses 7 specimens of this form described from a 

 ? ; the o was described by Boisduval under the name of argns. 



2 SS, 1 ? ? (ex BerUn Museum), 1 § Surinam (Klinkenberg) (ex coll. 

 Felder) ; 1 <J, 1 ? ?. 



Castnia (Sympalamides) mygdon form, rubrophalaris Houlb. 



Castnia rubrophalaris Houlbert, Etiid. Lipid. Cotnp. fasc. xiii. p. 69 (1917) (Bahia). 



1 (J Sapucaj', Paraguay, November 1903 (W. Foster) ; 1 <J Paraguay. 



[Castnia (Sympalamides) mygdon form, subvaria Walk. 



Castnia sulvaria Walker, List Lepid. Ins. Brit. Mus. part. i. p. 25 (1854) (Rio de Janeiro). 

 No specimen at Tring.] 



Castnia (Sympalamides) mygdon form, dionaea Hopff. 



Castnia diunaea Hopffcr, Neue od. wen. bek. Schmett. part. ii. p. 8. pi. v. fig. 3 (1856) (Brazil). 



1 <??. 



For another form of mygdon, cf. postea, p. 32. 



Castnia (Sympalamides) chelone Hopff. 



Castnia chdone Hopffer, Nene od. urn. bek. Schmett. part ii. pi. iv. ff. 1, 2 (1856) (Mexico). 



Of this extremely rare and very remarkable species there are a (J and 2 at 

 Tring. 



1 <J ? (ex Mus. Berlin, ex coll. Felder) ; 1 $ Rio Balzas to Ignala, 1,100 — 

 480—800 m. = 3,575—1,560—2,600 ft., August 1904 (Dr. Gadow). 



Castnia (Ypanema) hiibner Boisd in Latr. 



Castnia hiibner, Boisduval in Latreille in Cuvier, R^ne Anim. vol. iii. p. 439. pi. 20. f. 2 (1830). 



Dr. Strand has described an aberration with the median band of white 

 spots and the submarginal band of orange-yellow patches on liindwing much 

 reduced as ab. indecora. Li the Tring Museum is an aberration with the whole 

 hindwing orange, only a patch of black surrounding the median band of white 

 spots ; this I name ab. flavidior ab. nov. There are 8 specimens in the Tring 

 Museum : 



1 5, 3 $0 Matto Grosso (Zobrys and Wolter) ; 2 cJ(J ? (1 ex Mus. Berlin, both 

 ex coU. Felder) ; 1 ? Nivac, Matto Grosso (ab. indecora Strand) ; 1 ? ? (ex coll. 

 Felder) (ab. flavidior type). 



[Castnia (Ypanema) urugnayana Burm. 

 Not in Tring Museum.] 



