ADDITIONS AND COERECTIONS. 
401 
A second smaller ^ , almost exactly similar in colouring, was obtained in 
the same locality by Mr. C. Barker, and was received by me in January 1888. 
Additional localities on Western Coast of North Tropical Africa : — Came- 
roons: "Mungo" and Niger; "Abo {Buchholz).'' — Plotz. 
Precis Sesamus, p. 231. 
Precis Sesamus, Trim., Trans. Ent. Soc. Lond., 1883, p. 347. 
Fig. of cJ, Precis Ames fris, var. Caffraria, Staud., Exot. Schmett., pi. 38 
(1885). 
Pupa. — Prominences on head rather short, wide apart, minutely and un- 
equally bifid at tip. Thorax dorsally elevated into a prominence with a some- 
what iDlunted point, but laterally acutely so at base and also before middle of 
inner margin of wing-cases; a pair of acute tubercles on back of each thoracic 
segment, besides some minute intermediate ones. Abdomen with three dorsal 
series of similar tubercles, — the tubercles of the series on each side much larger 
and longer than those of the middle series ; two lateral series of very much 
smaller tubercles. 
Abdomen beyond fourth segment and lower median area of thorax reddish- 
brown ; all dorsal area as far as end of fourth segment brassy-gilded, with 
numerous small brown spots, and with more burnished brassy-gilded spots on 
tubercles and their bases; a duller gilded dorsal stripe, narrowing to tip of 
abdomen ; superior half of wing-cases rather dully gilded, and with a short 
brown streak (composed of three subquadrate spots) about middle of inner 
margin ; head dully gilded beneath. Length i inch. 
This description was made from two living pupae sent to me from Estcourt, 
Natal, by Mr. J. M. Hutchinson in March 1888. They produced pure 
Sesamus J $ and ^ respectively, on 14th and 15 th March. I can detect no 
difference between the empty skins of these specimens and that of an Octavia 
pupa described on pp. 219 and 230. 
An interesting (apparently $ ) example, rather nearer to Sesamus than any 
of the three specimens recorded on p. 233, was sent by Mr. C. Barker from 
Malvern, Natal, with the individual near Octavia mentioned above. This 
example retains in the fore-wings much of the basal blue irroration, and has 
barely a trace of red in the striation of the discoidal cell, while the upper part 
of the median fascia is pure-blue, but its lower part (inwardly bordering the 
macular red band) is dull reddish-violaceous ; in the hind-wings, however, the 
red invades the violaceous or lower half of median band, and there is also a 
red disco-cellular stria. In both wings, however, the submarginal blue lunules 
are reduced as in Octavia. The under side is quite like that of Sesamus^ 
except that the discal red is much more developed in the fore-wings, and also 
faintly indicated in the hind-wings. 
Oberthiir {Ann. Mus. Civ. St. Nat. Genova, xviii. pp. 721-722, 1883) records 
several examples intermediate between Amestris, (Drury), and Octavia, taken 
by the late Marquis Antinori in Shoa, Abyssinia, and is of opinion that these 
two forms can no longer be regarded as separate species. 
Dewitz {Berl. Ent. Zeitschr., xxix. p. 142, pi. 2, 1885) gives (fig. 5) true 
Sesamus; (figs. 2, 3, and 4) variations indicating more or less approach to 
Octavia; and (fig. 1) a specimen very much resembling the variation near 
Octavia depicted in my pi. 4, f. 4. These intermediate examples appear to be 
in the Berlin Museum; the only locality noted is that of fig. 3, viz., Liberia. 
The evidence in this most interesting case certainly seems to indicate that 
Octavia, Amestris, and Sesamus are as yet incompletely segregated forms, and 
that fertile inter-crossing is not unfrequent among them.^ 
^ Precis Actio, Distant [Proc. Zool. Soc. Lond., 1880, p. 185, pi. xix. f. 7), seems to a 
large extent to be intermediate between P. Sesamus and P. Archesia. It has the outline 
VOL. III. 2 C 
