246 Bulletin American Museum of Xaiural History [Vol. XLIII 



This species is represented by sixty-six males, some of which by the 

 reduction in width of the blue transverse band on the upper side of the 

 wings approach in appearance the form hjceus Doubleday, which is 

 prevalent in southern and eastern Africa. 



A couple of the specimens are labelled as taken at Gamangui in 

 February, a few as caught at Avakubi and Niangara in November, but 

 by far the greater number were collected at Medje, some in April, the 

 rest from June to September. 



(430) 10. Papilio bromius Doubleday 



Papilio bromius Doubleday, 1845, Ann. Mag. Nat. Hist., (1) XVI, p. 176. Aurivil- 

 Lius, 1908, Seitz, Gross-Schmett., XIII, PI. vb, \c. 



There are fifty-three males of this species in the collection. One 

 was taken at Matadi, the rest at Medje, several in April, the rest in the 

 mid-summer months. 



(431) 11. Papilio demodocus Esper 



Papilio demodocus Esper, 1798, Auslandische Schmett., p. 205, PI. li, fig. 1. 



This is the African race of P. demoleus Linnaeus, which latter is 

 common in the Asiatic tropics and also occurs in Arabia. It principally 

 differs by being somewhat larger and darker and having the ocellus 

 at the anal angle of the hind wing less conspicuously marked with red 

 scales. 



There are thirty-one males and six females. Twenty-seven of the 

 specimens were taken at Niangara in the month of November, five at 

 Medje in June and July, two at Stanleyville in August, one at Risimu 

 in September, and one at Ngayu in December. 



One of the males taken at Niangara on November 9, 1910, is re- 

 markable because all the Hght spots on the upper side of the wings are 

 brilliant lemon-yellow, and not creamy white, as is usually the case. 

 One female belongs to the varietal form to which Capronnier gave the 

 name nuhila (cf. Aurivillius, Seitz, loc. cit., PI. iva) in which the light 

 spots on. the upper side of the wings are ochreous. Aurivillius suggests 

 that this so-called subspecies is based upon discolored ("verfarbte") 

 specimens. I find it, however, difficult to agree with him, inasmuch as 

 I have before me as I write, quite a long series of such specimens, coming 

 from many different locahties from all over the continent, and all in 

 such state of preservation as to militate against the idea that the color 

 is other than natural. In every larger series of this species which has 

 come into my hands I have found a few specimens which have the pale 

 markings ochreous and, therefore, belong to the form nuhila. Though 



