72 Mil. S. A. XEAVE OX BUTTERFLIES [Jan. 18, 



Abantis lofu, sp. n. (Plate III. figs. 4, 5, J , § .) 



Somewhat allied to A. venosa Trim, and bismarcki Karsch, but 

 the greater portion of the secondaries white on the upper surface. 



d . Upperside. — Primaries. The basal three-fifths heavily scaled 

 with orange ochraceous, the remainder of wing brown, the veins 

 dusky, the following spots hyaline: — below costa batween end of 

 cell and apex three small spots of which the middle one is the 

 longest ; below end of cell a group of three spots divided only by 

 crossing veins, the first and smallest within cell, second in angle 

 of median and vein 3, the third and largest betweeen 3 and 2. 



Secondaries. The whole discal area white, the costal margin 

 ochreous, the outer and inner margins black ; outer margin 

 encloses a row of small internervular spots ; these, which are 

 ochreous towards costal margin, increase in size toward anal angle, 

 and there are represented by three larger white spots ; black 

 margin slightly invades discal area in the veins and vein 1 b is 

 wholly black. 



Underside much as upperside but paler, on secondaries outer 

 margin except at anal angle is pale greyish -brown, not black, and 

 marginal spots are evanescent ; vein 1 b is white, and the black of 

 inner margin is covered with many whitish scales. 



Fringe dusky, white on anal angle and inner margin of second- 

 aries ; thorax above orange-ochreous, marked posteriorly with two 

 pairs of white spots ; abdomen white, with a mid-dorsal black 

 streak and two narrow black ventral lines, tipped with a brush 

 of ochreous hairs ; anterior legs covered with ochreous, remainder 

 with white hairs. 



Length of primary 19 mm. 



Type o* and only specimen in Hope Coll., Oxford. Taken in 

 a patch of dense forest on the plateau between the Lofu river 

 a.nd Lake Tanganyika, 24.viii.08. 



The female of this species seems to be represented by a speci- 

 men captured on the edge of a very similar patch of forest east 

 of Lake Bangweolo. It differs considerably from the male, especi- 

 ally in the primaries. These are more rounded than in the male, 

 a.nd the basal portion is a brighter orange colour, the distal portion 

 being dusky, the two colours not blending into one another as in 

 the male. There is an increase in number and size of the hyaline 

 markings ; between cell-end and apex four larger hyaline spots 

 of nearly equal size ; spots below cell-end enormously enlarged, 

 especially that in area 2 ; an additional hyaline streak below this 

 last in 1 b. 



Secondaries as in male, but broader and more rounded. 



Underside as described in male, but outer margin of second- 

 aries is darker and encloses small white marginal spot as on 

 upperside. Colour of abdomen etc. as in male, but sides of 

 thorax appear to bear white not ochreous hairs. 



2 type also in Hope Coll., Oxford : east of Lake Bangweolo, 

 ll.ix.08. 



This female specimen exhibits a close relationship to A. arcto- 



