species of South African butterflies. 131 
the latter. Paucity of material chiefly occasioned this 
mistake, as I took no* ¢ of L. Barkeri while in Natal ; 
and, overlooking the only two true females of Osiris that 
I met with, I associated the females of Barkeri with the 
males of Osiris which I captured in the same localities. 
Colonel J. 8. D’Aquilar first (May, 1889) called my 
attention to the true 2 Osiris, as a ¢ Lycena not included 
in my work, but approaching in its characters the ? I 
had described under that name. But it is to Mr. Cecil 
N. Barker, of Malvern, Natal, that I owe the rectification 
of the error, as he has not only pointed out the dis- 
tinctions between the two forms, and sent much material 
in illustration of them, but has recently (May, 1891) 
forwarded a pair of each species taken in copuld.t Ihave 
accordingly much pleasure in naming the apparently 
undescribed species after Mr. Barker, who has for some 
years collected and observed very carefully the butterflies 
of Natal and Zululand, and has latterly most liberally 
communicated both specimens and notes in aid of my 
researches. 
As L. Osiris represents in Africa the Indo-Malayan 
L. Cnejus, Fab., so L. Barkeri may be considered as the 
representative of L. Strabo, Fab., which has almost as 
wide a range as Cnejus.{ On the upper side, however, 
the ¢ Barkeri differs totally in colour, Strabo 3 being of 
a bright pale lavender-blue; the former also presents 
in the hind wings an orange lunule (edging the hind- 
marginal black spot), which is wanting in the latter. 
The ¢ Barkeri is very like the @ Strabo on the upper 
side, but has the submarginal white markings larger and 
more elongated, and often very conspicuous. On the 
under side, in both sexes, the ground colour is of a much 
browner tint, and the discal fascia is in both wings less 
irregular than in Strabo; and the small but very distinct 
black spot at the anal angle borne by the latter species 
is wanting. 
* Mr. Barker notes (February, 1892) that while the ¢ of 1B): 
Barkeri is much more rarely met with than the 2, the reverse is 
the case with L. Osiris. 
+ L. Osiris on the Hleto River, and L. Barkeri (11th March, 
1891) on the Little Usutu River, Swaziland. 
+ Mr. de Nicéville (Butt. Ind., &e., i1., p. 178) records a note by 
Mr. W. U. Irvine, that “he once took C. Strabo coupled with 
C. Cnejus, Fab.” 
