454 mr. a. g. butler on species of lepidoptera. [nov. 22, 



Danais. 



Banais xanthippus should in my ' Monograph ' have been placed 

 after B. eresimus, to which it is closely allied. 



Since sinking Mr. Bates's species B.jamaicensis into a synonym 

 I have seen more specimens of that insect ; and it appears to be about 

 as constant as any of the allied forms. Unless the line be drawn 

 somewhere, the whole of the species of Banais from berenice to cleo- 

 phile might be considered one species, the difference between one 

 form and another being generally almost imperceptible. Thus spe- 

 cimens of B. berenice from the north-western coast of America only 

 differ from B. strigosa (Bates) in being slightly larger and duller in 

 colouring, and with the nervures not margined with grey ; dark spe- 

 cimens of B.jamaicensis cannot conscientiously be separated from 

 B. strigosa, and only differ from B. gilippus in having no central 

 white spots and the nervures margined with grey. B. gilippus dif- 

 fers from B. eresimus in having several additional white spots and a 

 wider submarginal black border ; B. eresimus has several white spots 

 more than D. cleothera, which it otherwise entirely resembles ; B. 

 cleothera scarcely differs from the Brazilian form of B. erippus ; and 

 the small Venezuelan form of B. erippus only differs from B. cleo- 

 phile in having a narrower marginal border, and the subapical spots 

 of the front wings pale ferruginous instead of yellow and placed a 

 little closer together. Considering these facts, it would perhaps be 

 as well to regard B. strigosa and B. jamaicensis as distinct from 

 the other allied forms. 



Danais mantjja. 



Idea manuja, Eschscholtz, in Kotzebue's Reise urn die Welt, pi. 7. 

 f. 13 a, 13 6(1821). 



Hab. Brazil. 



Omitted in my paper ; probably only another form of B. gilippus. 

 It seems chiefly to differ in its greater expanse of wing and larger 

 white spots ; it should come after B. gilippus, Cramer. This species 

 is not noticed in Mr. Doubleday's « Genera of Diurnal Lepidoptera.' 



Idea plexippus, Eschscholtz, in Kotzebue's Reise um die Welt, 

 pi. 7. f. 14a, 14 6 (1821), synonym of B. erippus: also omitted in 

 the ' Genera.' 



Danais cratippus (B. chrysippus, local var.). 



Banais cratijipus, Felder, Sitzungsberichte der K. Akademie der 

 Wissenschaften zu Wien, p. 449 (1860). 



Hab. Amboyna. 



A very slight local variety of chrysippus, the dark form mentioned 

 in my « Monograph ' as from Ceram, Java, and Greece. 



My B. pullata proves to be identical with Felder's B. mitylene. 



Danais mitylene. 



Banais mitylene, Felder, Wien. ent. Monatschr. iv. p. 232. n. 78 

 (1860). r 



