578 DE. A. 6. BUTLEE ON LEPIDOPTBEA [June 19, 



107. Catopsilia floeella. 



Pajnlio JloreUa, Pabricius, Syst. Ent. p. 479. n. 159 (1775). 



(S 2 5 Ndoro, steppes at base of Kenya, 7000 feet ; Ndangi 

 Eiver. 



108. GrllTTOPHEISSA CONTEACTA. 



Glutophrissa contracta, Butler, P. Z. S. 1888, p. 75. n. 102. 



(S , Ngatana ; $ , Lake Losuguta. 



109. Pheissuea lasti. 



Mylothns lasti, Grose-Smith, Ann. & Mag. Nat. Hist. ser. 6, 

 vol. iii. p. 124 (1889). 



Belenois lasti, Smith & Kirby, Khop. Exot. ii. pi. Belen. ii. 

 figs. 1-3 (1892). 



c? 2 5 Sabaki Valley, at Tanganyika. 



This is probably the species mimicked by Myloilms narcissus. 



110. Belenois thxsa. 



Fieris thysa, Hopffer, Ber. Verb. Ak. Berl. 1855, p. 639. n. 1 ; 

 Peters's Reise nach Mossamb., Zool. v. p. 349, pi. 21. figs. 7-10 

 (1862). 



Kibwezi. 



111. Belenois seveeina. 



Painlio severina, Cramer, Pap. Exot. iv. pi. cccxxxviii. Gr, H 

 (1782). 



Ngatana ; Barra near Merifano ; Grolbanti ; Miviruni ; steppes 

 of Thika-Shika. 



The majority of the specimens were obtained at Golbanti. 



Ill a. Belenois infida. (Plate XXXVII. figs. 1, 2.) 



Belenois infida, Butler, P. Z. S. 1888, p. 78. n. 111. 



Golbanti ; Miviruni ; Lake Losuguta ; shores of Lake Baringo ; 

 Kjempo ; Gopo lal Mavari ; Guaso Narok ; steppes N.W. of 

 Lougari ; Thagana ; Thegu ; Ukikuya ; Kithungulu ; steppes of 

 Thika-Shika ; steppes between Athi and Thika ; Athi plains near 

 Chjaujavi ; Machalios ; Maka ; Xdangi Eiver ; Sabalri Valley. 



The enormous series of this species collected by Dr. Gregory 

 proves, beyond dispute, that B. infida is only a Central and East 

 African development of B. sevenna, to which every possible link 

 exists ; it is only by eliminating all the specimens having dark 

 veins on the under surface from the series, that B. sevenna can be 

 at all distinguished from this race. The black bar at the end of the 

 cell, in this genus, proves to be a most unreliable character for the 

 discrimination of species ; indeed I bave very little doubt that 

 Pieris oyi/gia of Trimen Mill prove, when a large series can be 

 obtained, to be simply a development of Belenois thysa of Hopffer. 

 Belenois zochalia (as will be shown presently) varies in the same 

 way. 



