408 MR. H. H. DRUCE ON BUTTERFLIES [Apr. 6, 
Hab. Bitje, Ja River, Cameroons, 2000 feet (G. ZL. Bates). 
Dry season. Upper Kasai District, Congo Free State (C. Land- 
beck). 
Professor Aurivillius seems to have been the first to notice that 
Dr. Holland had “ initiated a remarkable error in respect to this 
form” [KEnt. Tidskr. 1896, p. 288] in figuring it as Katreus john- 
stont Butler. It is, however, possible that Dr. Holland con- 
sidered it to be the male of that species, but he gave no descriptive 
account of the insect. The type of Choristoneura Jjohnstont 
Butler is a male, and is slightly darker than females in the 
British Museum, and has a small clear shining patch near the 
base of the fore wing below, but otherwise the sexes are similar. 
We have one male from Bitje and three males from the Congo, 
but I have not seen the female. 
In the form of the antenne and the palpi, and also in the 
venation, this insect agrees well with Ovtholexis melichroptera, 
of which I was inclined to think it was the male. The short 
subapical fascia is semihyaline white, aml the upper surface of 
both wings has a slight flush of blue. The cilia of the hind wing 
on both surfaces is whitish, that of the fore wing being con- 
colorous with the wings. The palpi and legs are br ioht yellow. 
M. Mabille places the genera Aatreus and Chor ‘istoneura widely 
apart in his “ Hesperidee” (1904), although au Heron, as long 
ago as 1898 (Ann. & Mag. Nat. Hist. (7 ya p. 182), has written 
that they are synonymous. 
ABANTIS JA, sp.n. (Plate LX VII. fig. 2.) 
Male. Upper side allied to A. elegantula Mabille; fore wing 
coloured as in that species, and with the four discal and three 
subapical hyaline spots arranged likewise. Hind wing with the 
outer marginal third paler than median area, and with the basal 
area whitish hyaline crossed by the black nervules. Cilia dark 
glistening brown. Under side: both wings greyish buff, palest 
along aed inner margin of fore wing and [paternal fold alk hind 
wing, with black veins and hyaline spotsas above. Thorax black, 
with ‘the convergent tufts of hair brick-red. Abdomen greyish, 
with a central dark line above and broadly pale buff’ below. 
Venter dark brown. Antenne black. Palpi black above with a 
white spot ; yee. below, terminal joint black. Legs yellow. 
Expanse 1,5 inch. 
Hab. Bitje, ae River, Cameroons, 2000 feet (G. Z. Bates). Dry 
season. 
Distinguished at once from A. elegantula* by the hyaline 
basal area on the hind wing and by the absence of the yellow 
basal suffusion on the hind wing above and the unicolorous hind 
wing below, the basal and discal areas of A. elegantula being 
white on that wing. 
* Abantis elegantula Mab. Ann. Soc. Ent. France, 1890, p. 32; Novit. Lepid. 
p. 23, pl. iii. fig. 6 (1891). 
