TERACOLUS. 21 



and Tsavo Eiver, December and January [F. J. J.; Mas. F. J. Jackson). Elgeyo, 

 July {F. J. J. ; Mils. F. J. Jackson). 



Somali Land. — Daras-as, Goolis Mountains February [Mrs. E. Lor I- Phil lips ; 

 E. M. ShariDe, P. Z. S. 189G, p. 526). 



EXPLANATION OF THR FIGURES OF T. castalis. 



Plate 7, fig. 1. $ . Between Maungu and Tsavo Kiver, Dec. 1891-Jiin. 1892 (Mua. 

 F. J. Jackson). 

 ,, la. Underside. 



„ lb. ? . Elgeyo, July 1890 {Mus. F. J. Jackson). 

 „ Ic. Underside. 



,, Id. $ . Elgeyo, July 1890 (a dark seasonal form ; Afm. F. J. Jackson). 

 ,, le. Underside. 



TERACOLUS JOHNSTONI, Butler. 



(Plate 8, figs. 1, la-lf.) 



TeracoluB johnstoni, Butler, Ent. Monthly Mag. xxiii. p. 29 (1886) ; id. Ann. and Mag. Nat. Hist. (6), 



XX. p. 391 (1897). 

 Idmais eris (nee King), Westwood in Oates, Matabeleland, App. p. 336 (1881); Stand. Exot. Schmett, 



taf. 23, fig. 1 (1884). 

 Teracolus eris (nee Klug), Trimen, S. Afr. Butterfl, iii. p. 93 (1889, pt.) ; Guy Marshall, P. Z. S. 



1897, p. 7 (pt.). 



Male. — General colour i^wliite, vvith black and yellow marginal markings : the 

 central area on the primaries white, which is somewhat toothed towards the hind- 

 margin. A narrow band of black below the apical portion widens into a broad hind- 

 marginal border extending along the inner margin, but becomes narrower towards the 

 base of the wing. The apex has a violaceous brown patch relieved by five hastate 

 markings of golden yellow which vary in size. Between the second and third median 

 nervule is a white spot, which, in some specimens, is nearly obsolete. Fringe yellow 

 as far as the second median nervule, when it becomes white. The secondaries are 

 creamy white with a broad incui'ved costal border of black, terminating somewhat 

 abruptly about the end of the costal nervure. The base of the wing is dusted with 

 black, which extends to about the sub-median nervure. On the hind-margin each 

 nervule terminates in a minute black spot. 



Underside. — Primaries and secondaries white, the former having a black twin spot 

 al>ove the sub-median nervure and two larger ones between the second and third 

 median nervules. On the costal margin of the secondaries is a narrow streak of 

 orange yellow, as well as a spot at the end of the discoidal cell of the same colour. 

 Expanse 2 inches. 



