LYCiENIDiE. 
marked with a pale crimson-red spot, outwardly black dotted, and 
marked with a few bluish scales ; a small, indistinct, similar spot 
immediately above it. Cilia greyish in fore-wing, white in hind-wing 
(tinged with yellow near anal angle). Under side. — White, tinged 
ivith greyish; one transverse ferruginous-red streak in fore-wing, two 
in hind-wing ; costa and hind-margin of fore-wing and hind-margin of 
hind- wing with an orange edging. Fore-wing : ferruginous-red streak 
rather broad, straight from costa beyond cell, in direction of anal angle 
to second median nervule, where it abruptly terminates ; a semicircular 
patch of grey on inner margin near base, and lying over it a curious 
row of long black hairs springing from edge of inner margin ; near 
anal angle, above submedian nervure, an elongate blackish mark. 
Eind-wing : first red streak as in fore-wing, from costal nervure (before 
middle) as far as first median nervule, where it narrows, and is thence 
a biangulated thin black streak to inner margin a little beyond middle ; 
outer red streak not far from and almost parallel to hind-margin, narrow- 
ing and becoming almost obsolete after passing discoidal nervure ; space 
between streak and hind-margin greyish, enclosing an additional red 
spot between second and first median nervules similar to that at anal 
angle, which is larger than on upper side, merged with the smaller red 
spot, and outwardly edged with a bluish line ; from discoidal nervure 
the hind-marginal edging is black. 
$ Violaceous-whitish, suffused luith hlue from bases. Fore-wing : 
border narrower and dusky-blackish. Hind-iving : costa with a dusky 
border, widest at apex ; from it run two diminishing dusky streaks 
along hind-margin, the outer as far as second median nervule, the inner 
indistinctly to inner margin ; spot on anal angle, with that above it 
(which is large) centred with white ; a third, conspicuous, subquadrate, 
orange, black-dotted spot between second and third median nervule. 
Undek side. — Quite like that of ^, save for the absence of any grey 
patch on inner margin of fore-wing ; and the spots on hind- wing being 
less conspicuous. (Described from single specimen.) 
The $ is readily distinguished from $ I. Silas, Westw., by its 
smaller size, less glittering blue surface, strongly and doubly streaked 
under surface, with its orange edging, and more conspicuous circular 
patch on upper side of hind-wing. The front of the head and bases of 
pterygodes, which are both black (the former being white striped) in 
Silas, are ferruginous-red in Sidus. The fringe of hairs on inner 
margin of fore-wing, which is yellow in Silas, is black in the latter 
species. The ^ is very different in the two species. 
This very handsome lolaus was discovered by Colonel Bowker in Kaffraria 
in the year 1862, and in the following year Mr. H. J. Atherstone met with 
it on the coast of the Bathurst District in Cape Colony. The former noted 
it as rare and local, occurring from December to April/ and took most of his 
specimens on a Sneezewood tree {Pteroxylon utile) at the edge of a forest. I 
^ He subsequently wrote that he had observed it throughout the year. 
