the Rhopalocera of the Dollman Collection. 241 
(c) H. perspicua f. simonsi Butler. 
Of this there are six males and nine females taken ‘at 
Mwengwa in August 1913 and in the Lukange Valley, 
Kashitu, in September 1915. Not seen at Mwengwa.” 
Dollman goes on to say in his MS. notes that he “ agrees 
with Marshall (Trans. Ent. Soc. 1896, p. 562) and Neave 
(P. Z.S. London, 1910, p. 10) that simonsi is the dry-season 
form of perspicua. The two localities” in which it was 
found “were very dry river valleys—of the Kafue and 
the Lukanga. Seeing that perspicua was not taken at 
Mwengwa, but that the closely allied form birsha was, the 
Mwengwa simons: are probably seasonal forms of the 
latter.” 
An examination of the dates of capture of these three 
forms, and the form ¢eratia, Karsch (a form intermediate 
between perspicua and simonsi), all occurring in N.W. 
Rhodesia and Katanga, shows that (1) in the middle of 
the rainy season (Jan—Ieb.) only birsha occurs, (2) at 
the beginning of the rains (Oct—Nov.) and again at the 
end (Feb.—March) only perspicua occurs, (3) from March— 
July teratia is the predominant form, and (4) during July, 
August and Sept., the hottest and driest months, only 
sumonst occurs. There is very little overlapping in the 
series in the British Museum. _ These facts and the impos- 
sibility of fixing on any character—other than obvious 
seasonal characteristics—by means of which to separate 
these so-called species, point fairly conclusively to their 
being all forms of one and the same species, of which the 
oldest name is perspicua Trimen. 
NYMPHALIDAE. 
NYMPHALINAE. 
7. Charaxes etheocles Cram. 
P. etheocles Cram., Pap. Exot. ii, p. 34, pl.119, figs. D.£., 1777. 
(Plate VI, figs. 1-3.) 
With regard to this and the next species I think it best 
to quote the whole of Dollman’s very interesting MS. notes. 
The series of the two species were exhibited at the Entomo- 
logical Society of London on 4th December, 1918, and a 
short account of them occurs in the Proceedings of the 
TRANS. ENT. SOC. LOND. 1921.—PARTS I, II. (OCT.) RB 
