- 
584 Dr. H. Eltringham on the 
appear to be associated with it, and finally to give the 
characteristics of several specimens which, as above 
explained, I consider must for the present at least be 
regarded as indeterminate forms of the same species. Such 
forms come within our definition of a species 1f we assume 
that they constitute what Prof. Poulton has termed a 
syngamic chain (Proc. Ent. Soe., p. exvi, 1903), im which 
consecutive links are apparently capable of pairing, 
although the terminal elements may be too far specialised 
to admit of intercourse, and this not necessarily in relation 
to any special geographical distribution. Indeed, in cases 
of this kind syngamic “‘ complex ”’ would be more expressive 
than ‘‘ chain.” 
37. Neptis NysiADES. Pl. XXIII, fig. 4 (nearly typical) ; 
Pl, XXV, ‘figs, 16, 17. 
Hew., Exot. Butt., (Neplis) pl. 1, ff. 3, 4 (1868); Trimen, 
S. Af. Butt., 1, p. 271 (1887); Auriv., Ent. Tidskr., 15 
p- 285 (1894); Holl., Ent. News, 3, pl. 9, f. 10 (1892) (proz.) 
(as biafra); Auriv., Rhop. Aeth., p. 167 (1898); in Seitz, 
Macrolep., p. 200, pl. 48e (prov.) (1913). 
Lagos to UGanpa. 
f. metanira. Pl. XXV, fig. 20. 
Holl., Ent. News, 3, p. 249, pl. 9, f. 6 (1892); Auriv., 
Rhop. Aeth., p. 167 (1898); in Seitz, Macrolep., p. 201 
(1913). 
Conco Recion to UGANDA. 
f. continuata. Pl. XXIII, fig. 8 
Holl., Ent. News, 3, p. 249, pl. 9, f. 9 (1892) (as biafra 
continuata); Auriv., Rhop. Aeth., p. 168 (1898); in Seitz, 
Macrolep., p. 201 (1913). 
Conco to UGANDA. 
f. clarei. Pl. XXIII, fig. 6 
Neave, Novit. Zool., 11, p. 330. pl. 1, f. 15 (1904); Auriv., 
in Seitz, Macrolep., p. 201 (1913). 
NYANGORI. 
f. conspicua. Pl. XXIII, fig. 7; Pl. XXV, figs. 18, 19. 
Neave, Novit. Zool., 11, p. sh pl. 1, f£. 15 (1904); Proce. 
