18 NOVITATES ZOOLOOICAE XXVI. 1919. 



Castnia (Ypanema) decussata fulvipyga Strand 



Caslnia decussata form, julvi^iyga Strand, in Seitz, Grususrhmell. Erde, vol. vi. p. 12 (1913) (Brazil). 



This may eventually prove a distinct species. The single $ at Tring agrees 

 with Strand's description in having the fulvous spot at tornus and the pure white 

 three-fifths of underside of liindwing. In addition it differs in the band of hind- 

 wing above reaching tornus and not as in d. decvssata stopping short at vein 2, 

 i.e. it consists of 8 spots instead of 5, each spot bordered with orange instead of 

 being pure white ; the submarginal row is distinct and strongly marked, con- 

 sisting of 6 orange spots with whitish centres to last 2, whereas in d. decussata 

 this submarginal row consists of 3 almost obsolete whitish spots. Below on the 

 forewing it lacks the rufous band below median vein on fore\\ing of d. decussata, 

 and on hindwing the median band is much wider and pure white edged distally 

 with orange, not pale lavender. Expanse : 87 mm. 1 <? ?. 



Castnia (Schaefferia) amyous (Cram.). 



Papilio amycus Cramer, Pap. Exot. vol. iii. part xix. p. 00. pi. ccxxvii. li. D.E. (1779) (Berbice). 



Messrs. Houlbert and Oberthiir wish to restrict the name amycus to speci- 

 mens from the Guianas. I am of opinion that amycus must include all the 

 Brazilian specimens down to Rio de Janeiro ; in Sta Catharina we first find 

 such constant differences that we can set up a local race. 



The Truig Museum contains 5 specimens of true amycus, 2 of which have 

 so much reduction in the red markings that I propose to call them ab. reducta 

 ab. nov. 



1 (J Interior of Brazil (Schott, ex Vienna Museum, ex coll. Felder) ; 1 $ 

 Rio de Janeiro ; 1 ? ? ; 2 JcJ ? (type of ab. reducta). 



Castnia (SchaeSeiia) amycus alboinsignita Strand 



Castnia amycus form, alboitisignila Strand, in Seitz, Grossschmett. Erde, vol. vi. p. 13. pi. 5 d (1913) 

 (South America). 



This form seems prettj' constant in Sta Catharina and varies only in the 

 amount of red on hindwing, which, however, is always less than in a. amycus. 

 There are in the Tring Museum 11 specimens, of which 7 &xe amycus alboinsignita , 

 3 are ab. trislicula Strand, and I is ab. meditrina HopSer : 



2 (J(J, 1 9 TheresopoUs, Sta Catharina, 800—1,000 ft., November 1904— 

 February 1905 (J. Michaelis) ; 3 SS Sta Catharma ; 1 <^ ? ; 2 <J<J TheresopoUs, 

 1 cJ Sta Catharina (ab. tristicuki) ; 1 <J Theresopolis (ab. meditrina). 



Castnia (Schaefferia) subcoerulea sp. nov. 



?. Antennae black, distal half of club rufous brown ; head, thorax, and 

 abdomen deep black, anal tuft rufous orange. Forewing deep black, a post- 

 median white oblique band from costa to just before termen below vein 2, a 

 white oblique subapical band from costa to vein 6. Hindwing deep black, a 

 large median bandlike patch of pale silvery blue on the edge of which and joined 

 to it ;ir.' two white patches on each side of vein 5 ; 2 white patches also, separated 

 from it, on each side of vein 3. 



Length of forewing : 31 mm. Expanse : 69 mm. 



Habitat. Ecuador, 1 $. 



