1900.] FROM BRITISH EAST AFRICA. 943 



extending between the veins almost from the margin to the end 

 of the cell. Expanse of wings 37 millimetres. 



6 6,2, Eoromo, Feb. 17, 18 ; March 23, 1900. 



In his Eevision of the African Hesperiidae (P. Z. S. 1896, pi. iii. 

 figs. 3, 4) Dr. Holland appears to have figured C. biseriatus $ and 

 C. maadatus S , showing almost the same differences as in the 

 two types : the differences are just what one finds between the 

 sexes of other species, and are certainly less marked than in the 

 sexes of C. opalinus. Of the latter Mr. Crawshay writes as 

 follows : — 



5 . " An exceedingly difficult insect to take : the first of its 

 kind 1 have seen : ten days' almost incessant rain day and night 

 will probably have affected the butterfly world." 



$ . " Taken in the early morning when numbed with the cold — a 

 very different insect to what it is in the warm sunshine." 



2 . " This Skipper habitually perches on the underside of the 

 leaf on which it settles : this and the two consecutive specimens 

 were all taken in this position." 



105. Caprona canopus. 



Caprona canopus, Trimen, Trans. Ent. Soc. London, 3rd ser. ii. 

 p. 180 (1864) ; Ehop. Afr. Austr. ii. p. 309, pi. 6. fig. 2 (1866). 



c? 6 , 2 2 , Euarka Eiver, April 15, 22, 27, & 29, 1900. 



2 • " This very striking ' Skipper ' I have seen perhaps three 

 times in all during my time in Kikuyu. Until now (April 15), I 

 have never been able to secure a specimen. It frequents dense 

 forest. This particular insect I took perching on a flowering bush 

 close to the stream." 



6 . " Taken on the same flower as the following specimen 

 (April 22). The favourite perch of this striking ' Skipper ' is a 

 flowering bush in the sunshine. Its first appearance when seen 

 only a few feet away is that of a veritable rag, even when a perfect 

 specimen. It does not perch on the ground, I think, nor anywhere 

 very low." 



Mr. Crawshay tells me that this insect looks so much like the 

 flowers of the bush on which it settles that it is not easily seen 

 when perching. 



106. Pyrgus spio. 



Papilio spio, Linnaeus, Mus. Lud. Ulr. p. 338 (1764). 



6 , Lali flats, Kikuyu forest, Dec. 19, 1899 ; 2 , 6 6 , Eoromo, 

 Jan. 12 & 23; 2 , Nairobi plains, April 14, 1900. 



c? . " Taken on open grass-land, the only one seen." 



<$ . " Taken asleep on the stem of a flower on a cold evening at 

 sunset and carried in to this camp resting on the flower." 



107. GrOMALIA BLMA. 



Pyrgus elma, Trimen, Trans. Ent. Soc. London, 3rd ser. i. 

 p. 288 (1862); Ehop. Ah. Austr. ii. p. 291, pi. 5. fig. 8 (1866). 



