558 Dr. HABitringham on the 
Fer one Se 
; -*< 
ochracea, though less developed. My friend Dr. 8. A. Neave | 
tells me that the fauna of Chirinda and Mlanje present great 
similarities, and the explanation of the present case seems 
a simple one. The same species, swynnertoni has become 
isolated in the two elevated regions. On Mlanje the clasper 
has developed an upturned hook. Doubtless in course 
of time other modifications will arise, and what are now 
probably forms of the same thing will ultimately become two 
definitely separate species. 
14, Nepris acatHa. - Pl. XXT, fig.°2; Pl XXIV, fe vis. 
Stoll, Cramer Pap. Exot., 4, p. 76, pl. 327, f. A, B (1780) ; 
Hopfier, Peters Reise Moss. Ins., p. 383 (1862); Staud., 
Exot. Schmett., 1, p. 146, pl. 50 (1885-6); Trim., 8. Afr. 
Butt., 1, p. 270 (1887); Karsch, Berl. Ent. Zeit., 38, p. 
186 (1893); Auriv., Rhop. Aeth., p. 167 (1898); Roth. 
& Jord., Novit. Zool., p. 536 (1903); Rogers, Trans. Ent. 
Soc. Lond., p. 505 (1908); Neave, Proc. Zool. Soc., p. 33 
(text fig.) (1910); Auriv., in Seitz, Macrolep., p. 200, pl. 
48d (1913); Longstaff, Trans. Ent. Soc. Lond., p. 21 (1913); 
l.c. p. 275 (1916); Holl., Bull. Am. Mus, Nat. Hist., p. 160, 
pl. vi, ff. 7, 8 (1920). 
= melicerta. Fab., Syst. Ent., p. 508 (1775); Godt., 
Enc. Meth., 9, p. 432 (1823); Trim., Rhop. Afr. Aust., 
p. 146 (1862). 
=agathe. Herbst, Naturs. Schmett., 9, p. 86, pl. 238, 
Pests) (LOB). 
Arrica 8. of Sahara. 
agatha ab. lativittata. 
(N. lativittata) Strand, Archiv. f. Naturg., 75, 1, p. 305 
(1909). 
With type form. 
agatha agatha. 
Expanse 35-50 mm. Sepia black with white markings. F.-w. 
with three to four or five dots in cell. A hind-marginal patch of two 
spots in la and 1b, a discal band of spots from 2 to costa, sometimes 
quite continuous, sometimes interrupted slightly by nervules, the 
outer edge forming a fairly regular convex curve, the inner straighter 
but usually indented at nervule 4. Distal to this band a line rather 
paler than ground-colour and sometimes bearing a few white scales, 
