1898.] FROM BRITISH EAST AFRICA. 405 



59. LYC^ENA KERSTENI. 



Lyccena Jcersteni, Gerstaecker, in Von der Decken's Reisen in 

 Ost-Afrika, iii. 2, p. 373, pi. xv. fig. 5 (1873). 



J rf , Tarn, 20th December, 1896 ; Voi, 1st May, 1897. 



This is the Eastern representative of L. larydas ; it has much 

 more white on the under surface. 



60. LYOENESTHES SYLVANUS. 



Papilio sylvanus, Drury, 111. Exot. Ent. ii. pi. iii. figs. 2, 3 (1773). 

 rf rf , Mgana, 13th August, 1896. 



These are the first examples from Eastern Africa which I have 

 hitherto seen ; unfortunately only one pair was obtained. 



61. LYC^NESTHES AMARAH. 



Polyommatus amaraJi, Guerin in Lefebvre's Voy. Abyss, vi. 

 p. 384, pi. 11. figs. 5, 6 (1847). 

 c? , Mgana, 12th July, 1896. 



62. ZERITIS AMANGA. 



Zeritis amanga, Westwood in Oates's Matabele-land, p. 351 (1881 ). 



$ , Taru, 20th December, 1896 ; rf , Voi, 2nd May, 1897. 



The specimen of the female differs from our single imperfect 

 Abyssinian example in the pattern of the primaries ; the male, how- 

 ever, undoubtedly varies not a little. 



63. ZERITIS HARPAX. ' 



Papilio harpax, Fabricius, Syst. Ent., App. p. 829 (1775). 



rf ? , Mwachi Eiver, June 7th ; $ , Mgana, August 30th, 1896. 



Var. ? tf with red patch on primaries confined to internal area ; 

 secondaries of both sexes slightly less heavily bordered; silver 

 spotting on under surface of secondaries considerably less promi- 

 nent and (in the female) on a paler background. 



c? $ , Mgana, 12th July, 1896. 



It is just barely possible that the variety noted above may be 

 distinct from typical Z. harpaa, but I do not believe it is so ; we 

 have received the same form from Nyasaland. I also do not believe 

 it possible to separate Z. perion from Z. liarpax, the differences 

 given to distinguish them by Mr. Trimen being undoubtedly 

 unreliable. 



LEPTOMYRINA, gen. nov. 



Nearly related to typical Myrina (M. silenus, &c.), having the 

 same general wing outline and neuration ; it differs in its compara- 

 tively longer and far more slender antennae with abruptly thick- 

 ened club, rather more slender palpi, and the considerably shorter 

 and more delicate tails to the secondaries. Type L. phidias, Fabr. 

 (rabe, Boisd.). 



