TERACOLUS. 35 



TERACOLUS ELGONENSIS, E. M. Sharpe. 



(Plate 12, figs. 2, 2a.) 



Teracolus elgonensis, E. M. Sharpe, P. Z. S. 1891, p. 101, pi. xvi. fig. G ; Guy Marshall, P. Z. S. 1807, 

 p. 1(1; Butler, Ann. and Mag. Nat. Hist. {f<) xx. p. 303 (1807). 



Male. — General colour of the primaries greenish-wliite, with a small black spot at 

 the end of the discoidal cell ; costal margin narrowly edged with black, which is much 

 broader at the apex, and continued along the hind-margin, decreasing in width towards 

 the sub-median nervure, where the black terminates. Near the apex, between the 

 third sub-costal and first radial nervules, is an ovate spot of deep crimson followed by 

 two other spots smaller in size, the last of these being nearly obsolete. At tlie base 

 near the inner margin is a slight shading of grey. The secondaries are also greenish- 

 white, with no visible markings. 



Underside. — Primaries white, with the costal margin, hind-margin, and apical 

 portion yellowish-green, the small black spot at the end of the discoidal cell being 

 visible. Secondaries entirely yellowish-green, the costal margin being narrowly edged 

 with orange, while a small streak of black is strongly pronounced at the end of the cell. 

 From the end of the costa to the sub-median nervure is a discal row of brownish spots 

 situated between the nervules. Expanse 1'9 inch. {Ti/pe in Coll. F. J. Jachon). 



Some specimens collected by Captain Woodward near the Eldoma Ravine are 

 very similar to the type in Mr. Jackson's collection, having tlie brownish-black 

 apex and hind-marginal border much lighter in colour, the brown border terminating 

 above the first median nervule ; the crimson spots on one of these specimens are 

 much diminished in size. 



There seems to be a certain amount of variation in the species, as one specimen 

 obtained by Captain Woodward in Nandi has only the faintest indication of a crimson 

 spot near the apex of the primaries, the apical portion of the latter having the hind- 

 margin heavily marked with black. The underside is also rather greener in colour. 

 A fourth specimen is somewhat of a more dead yellowish-white, the apical border 

 being likewise of a lighter brown. The underside is decidedly more pink and alto- 

 gether realises what one might expect the " dry-season " form of the species to be like. 

 This, however, can scarcely be the case, as Captain Woodward collected all four 

 specimens in the month of March. 



Habitat. — Ei^uatorial Africa, Mount Elgon, Feb. 1890 (F. J. J.; Jackson CoU) ; 

 Nandi, March 1898 {Capt. E. M. Woodioard) ; Eldoma Ravine, Marcli 1898 {Capt. 

 E. M. Woodward). 



This species is very readily distinguished from all other members of the genus 

 except T. eunomus, with which, howevei-, it cannot well be confounded. As Mr. Guy 



