938 br. a. g. butler on butterflies [dec. 4, 



92. Leuceronia argia. 



Papilio argia, Fabricius, Syst. Ent. p. 470 (1775). 



S 6 , Buarka River, April 25, 27, & 29, 1900. 



" About three weeks ago I saw two specimens of: this lovely 

 butterfly at the Euarka River high up amongst the trees, where it 

 \\ as impossible to get at them. Probably, as I have seen no others 

 in the meantime, this and the following number are the pair 

 originally seen." (22. G.) 



On April 27th a perfect example was taken, and Mr. Crawshay 

 observes : — " Perhaps altogether I have seen three or four to-day. 

 The flight of this butterfly is strong, irregular, and dashiug : in the 

 midst of its headlong career it stops as if shot and settles on a 

 bush." 



On the 29th a single broken example was taken settled on a 

 leaf. 



93. Papilio rex. 



Papilio re.c, Oberthiir, Ann. »Soc. Ent. France, (6) vi. Bull. p. 115 

 (1886) ; Etudes d'Ent, xii. p. 2, pi. 1. fig. 2 (1888). 



Ruarka River, 5500 feet, April 27, 1900. 



" At last I have secured a perfect specimen." (R. C.) 



From the above note it would appear that Mr. Crawshay has 

 met with other examples of this rare Papilio, or possibly of the 

 equally beautiful Melinda formosa (which it mimics). The present 

 species is quite new to the Museum, and it is to be regretted that 

 the club of the right-hand antenna has been lost in transit. 



94. Papilio nobilis. 



Papilio nobilis, Rogenhofer, Verh. zool.-botan. Ver. Wien, xli. 

 p. 563 (1891). 



Papilio pringlei, E. M. Sharpe, P. Z. S. 1894, p. 352, pi. xix. 

 fig. 3 (1894). 



$ , Nairobi forest, March 20 ; J , 2 , Ruarka River, April 

 23 & 29, 1900. 



Of the male (a fine and almost perfect example) Mr. Crawshay 

 says : — " An insect quite new to me." Of one of the two females: — 

 " Gravid, with pale sea-green spherical ova." 



Of the male the Museum previously possessed one less perfect 

 and slightly varied example from Uganda; but the two females now 

 sent are new to science, being tailless, and of a type approaching 

 the tibullus $ form of P. cenea : the ground-colour of the wings is 

 buffish white, somewdiat more sordid within cell of primaries ; these 

 wings with the costa and apical half black, sometimes replaced by 

 grey scaling in a patch between veins 3 and 4, thus connecting a 

 broad w T hite postcellular patch with the ground-colour of the 

 interno-basal half ; the latter is also more or less connected in a 

 similar manner with an oblique narrow bar within the end of the 

 discoidal cell ; a subapical cream-whitish oval spot either present 

 or wanting, and three submarginal spots as in females of P. cenea ; 



