1898.] FROM BRITISH EAST AFRICA. 403 



Taru, 16th, 19th, and 20th December, 1896; Mombasa, 7th 

 January, 1897. 



The variation of the markings of the upper surface in this species 

 is considerable and may be thus described : 



1. Primaries. Costal markings not entering the discoidal cell, 

 but forming a K-shaped marking immediately beyond cell ; outer 

 border wide on costa, rapidly tapering and becoming linear after 

 second median branch, not reaching external angle. 



Secondaries. Outer border extremely narrow. Mgana. 



2. Primaries. Costal markings extending quite across discoidal 

 cell and completely confluent with outer border, which tapers 

 gradually to external angle and extends a short distance along the 

 inner margin. In this variety the outer border occupies about a 

 third of the wing. 



Secondaries. Outer border broad in the centre, squamose at both 

 extremities. One shattered and worn starved example. Mgana. 



3. Primaries. Costal markings extending across discoidal cell, 

 but separated from outer border, which is slightly narrower than 

 in var. 1, but continued to inner margin. 



Secondaries. With tolerably broad outer border of nearly uniform 

 width (typical D. hildegarda). Sainburu. 



4. Primaries. Costal markings as in var. 1, but outer border 

 continued to inner margin. 



Secondaries. Outer border distinctly narrower than in var. 3, and 

 especially towards anal angle. Taru. 



5. Like var. 3, excepting that the outer borders of all the wings 

 are broader (typical D. freyd). Taru. 



It is difficult to find two specimens which exactly agree in 

 pattern. 



49. POLYOMMATUS B^ETICUS. 



Papilio bceticus, Linnaeus, Syst. Nat. i. 2, p. 789 (1767). 

 rf , Taru, 18th December, 1896. 



50. CATOCHRYSOPS OSIRIS. 



Lyccena osiris, Hopffer, Ber. Verb. Ak. Berlin, 1855, p. 642 ; 

 Peters's Eeise n. Mossamb. v. p. 409, pi. 26. figs. 11, 12 (1862). 



$, Mgana, 30th August, 1896; rf, Maungu Inkubwa, 21st 

 March, 1897. 



Only one unusually large pair was obtained. 



51. CATOCHRTSOPS PERPULCHRA. 



Lyccena perpulchra, Holland, Entomologist, 1892, Suppl. p. 90 ; 

 Proc. U.S. Nat. Mus. vol. xviii. p. 239, pi. vii. fig. 7 (1895). 



, Mombasa, 7th January, 1897. 



This is an unusually white example ; we possess a similar, though 

 more worn, example from Zomba. My original type of G. hypo- 

 leucus from the Victoria Nyanza appears to be a distinct species ; 

 it is considerably larger, the under surface tinted with buff, all 



