Collection of Madame Gaston Fournier. (pe 
Erythrocastnia syphax, Fabr. 
Papilio syphax, Faby, Syst. Entom, p. 480. no. 165 (1775). 
In the long series from French Guiana there appears to be 
but little variation, most of them having the black pateh in 
the red border of hind wing at anal angle well marked ; but 
one specimen is without it, and therefore agrees with the 
Amazonian race. ‘There are two specimens of a curious 
aberration which has the oblique white band of fore wing 
interrupted at veins 2 and 3; for this aberration I propose 
the name of interrupta. 
26 6 Sd, 6 2 2, Lower Maroni, French Guiana; 1 g, 
Brazil? This locality is probably erroneous ; the specimen 
was received from a German dealer bearing the ticket 
“Castnia syphax, var. 2, Brasil.” It is a male, and has the 
anal black patch in red border of hind wing well defined. 
Evythrocastnia syphax completa, subsp. n. 
This subspecies differs from the typical Guiana form in 
wanting the anal black patch in red border of hind wing. 
As already noticed, it occurs as an aberration in Guiana, but 
in the Amazon district it is the typical form. One of the 
specimens from Santarem resembles the aberration ¢nterrupta 
described above, inasmuch as it has the oblique white band of 
fore wing interrupted at vein 2. 
235 g(type), Santarem, Amazons; 2 g 3, Para, Amazons. 
Xanthocastnia evalthe, Fabr. 
Papilio evalthe, Faby. Syst. Entom. p. 480, no, 166 (1775). 
I think that allowance should always be made for the 
roughness of Cramer’s figures. Lord Rothschild has already 
pointed out [Novitat. Zool. xxvi, p. 1 (1919)] that, though 
the originals in the British Museum are very well drawn, 
that the reproductions are often very coarsely executed; I 
therefore adopt the name of evalthe, Fabr., for the form from 
French Guiana, and consider the name of evalthetformis, 
Houlb., to be merely a synonym. 
8 6 g,13 2 2, Lower Maroni, French Guiana; 1 3, no 
locality. 
Xanthocastnia evalthe quadrata, Rothsch. 
Castnia (Xanthocastnia) evalthe quadrata, Rothsch. Noyitat. Zool. xxvi. 
p- 10 (1919). 
One specimen from Ecuador wants the characteristic 
cellular yellow spot on underside of hind wing. 
od 
