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Show 938 DR. A. G. B U T L E R O N BUTTERFLIES [Dec. 4, 92. LEUCERONIA ARGIA. Papilio argia, Fabricius, Syst. Ent. p. 470 (1775). cf cf, Euarka Eiver, April 25, 27, & 29, 1900. " About three weeks ago I saw two specimens of this lovely butterfly at the Euarka Eiver high up amongst tbe trees, where it was 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." (R. C.) O n April 27th a perfect example was takeu, and Mr. Crawshay observes :-" Perhaps altogether I have seen three or four to-day. The flight of this butterfly is strong, irregular, and dashing: in the midst of its headlong career it stops as if shot and settles on a bush." O n the 29th a single broken example was taken settled on a leaf. 93. PAPILIO REX. Papilio rex, Oberthiir, Ann. Soc. Ent. France, (6) vi. Bull. p. 115 (1886); Etudes d'Ent. xii. p. 2, pi. 1. fig. 2 (1888). Euarka Eiver, 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, Eogenhofer, Verh. zool.-botan. Ver. Wien, xii. p. 563 (1891). Papilio pringlei, E. M . Sharpe, P. Z. S. 1894, p. 352, pi. xix. fig. 3 (1894). 2 , Nairobi forest, March 20 ; cf, $, Euarka Eiver, April 23 & 29, 1900. Of the male (a fine and almost perfect example) Mr. Crawshay says :-" A n 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 2 form of P. cenea : the ground-colour of the wings is buffish white, somewhat 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 white 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 |