( XX ) 



even on the coast of Britisli Guiana specimens occur with 

 an occasional inward suffusion of yellow over the wing. With 

 memnon the same transitions in blue suffusion can be found 

 linking up prometheus through epimetheus to the type form. 

 Atlas from Ecuador is only like an enlarged memnon. 



The errors made by Herr Fruhstorfer badly need correct- 

 ing. Menes, Fruh., from Chiriqui, peleus from Venezuela, 

 telemonius, Feld. (= pavo, Eob.), and probably pavonides, 

 Fruh., from Eastern Colombia are all forms of teucer and 

 not of memnon. As to pavonides I have no specimen to 

 examine, but suspect it to be a form of teucer. 



Then Herr Fruhstorfer makes prometheus, epimetheus, atlas 

 and anaximandrus all forms of another species, while from 

 the genitalia and the gradual transition of the forms to memnon 

 there can be no doubt that they are all forms of that species. 

 As telamonius was placed wrongly under memnon it becomes 

 necessary to find what the form of memnon is that inhabits 

 Colombia, and the answer without doubt is prometheus, with 

 its aberration epimetheus. Felder, Reise Novara, p. 455, 

 distinctly says that jjrometheus and epimetheus came in the 

 same collection from Bogota ; yet Fruhstorfer gives different 

 subspecific rank to the two, and even in the same paragraph 

 says that epimetheus comes from Eastern Colombia and the 

 Western Cordilleras 2000 m. ! It is, of course, possible that 

 epimetheus occurs as a race somewhere, but for the elucida- 

 tion of what species these Caligo represent Felder's information 

 is illuminating. Anaximandrus has not been examined, as 

 no specimen is available. 



The undersides respectively of the teucer forms and the 

 memnon forms agree pretty well all through, and an inspec- 

 tion of them alone might have saved a great deal of con- 

 fusion. Messrs. Godman and Salvin in the Biologia Centrali- 

 Americana, on PI. xiv, figured what they called telamonius 

 alongside with memnon, recording both from Panama, so it 

 should have been clear that telamonius could not be a sub- 

 species of memnon. The " telamonius " from Costa Rica we 

 call cachi. 



The following statement sets forth the facts as now re- 

 vealed : — 



