288 Dr. A. G. Butler on 
Loc. El donyo eb Urru, on the Mombasa-Uganda Railway 
in British East Africa (C. S. Betton). 
In the absence of the female I have assumed that the 
armature and carination of the carapace in this species are 
merely sexual characters. 
Selenops basutus, sp. n. 
? .—Resembling S. atomartus and S. Spencert in having 
seven pairs of tibial and three pairs of protarsal spines on the 
first and second pairs of legs. 
Eyes of ocular quadrangle * apparently as in S, atomarius, 
but the anterior laterals with their centres on a level with 
those of the anterior medians instead of with the upper 
edges of the latter, and the interior edge of the posterior lateral 
scarcely higher than the inferior edge of the anterior medians. 
(Simons’s drawing of the eyes of 8. atomarius in Hist. Nat. 
Araign. il. p, 25, is apparently diagrammatic, to judge by the 
exceptional height of the anterior laterals above the clypeus ; 
but it is not possible to make the figure fit the arrangement 
shown in S. basutus. 
Vulva with its lateral lobes subquadrate, in contact in the 
middle line, the line of junction marked by a groove expanding 
anteriorly ; in front of each lobe a distinct pit, the pit of the 
right side separated from that of the left by a broad median 
longitudinal bar, which narrows posteriorly and runs for a 
short distance in between the two lobes. 
Total length 18 millim. ; carapace 7. 
Loc. 'Veyateyaneng in Basutoland (LZ. Wroughton). 
XXXVIII.—Deseriptions of new Species of Lycenide in the 
Collection of the British Museum. By A. G. BUTLER, 
Ph.D: 
THE following are all species which I have been unable to 
name during my recent study of the family, or which have 
been received subsequently. 
* In Hist. Nat. Araign. ii. p. 23 (1897), Simon, when discussing the eyes 
of the Selenopinze, writes :—“‘ Les auteurs ne se sont jamais prononcés 
sur Vhomologie des petits yeux nocturnes latéro-antérieurs, mais, pour 
moi, ils représentent des yeux médians postérieurs trés fortement déviés 
de leur situation normale.” This view appears to me to complicate a very 
simple question ; for surely the four median eyes in this genus are nothing 
but the tour eyes of the median quadrangle, forming a trapeze unusually 
wide behind, and not the eyes of the anterior line much or a little 
recurved, as Simon supposes; and “les petits yeux nocturnes latéro- 
antérieurs ” are the normal antero-lateral eyes, 
