C, txlya } 
EURALIA ANTHEDON, Dovust., anD E. puptA, BEAUV., PROVED 
BY BREEDING TO BE THE FORMS OF A SINGLE SPECIES.—Prof. 
Poutton exhibited a female parent of the dubia form captured 
on March 19, 1911, at Oni, 70 miles E. of Lagos, by Mr. 
W. A. Lamborn, together with a selection from the offspring 
reared from its ova. The offspring included both dubia and 
anthedon. Thus Mr. Lamborn had been able to verify the 
suggestion made in Trans. Ent. Soc., 1902, p. 492: “If Mr. 
Marshall’s conclusion [advanced, on pp. 491-2, that tlie 
Eastern Euralias, wahlbergi, Wallgr., and mima, Trim., are 
the forms of a single species] be established, it follows that 
the corresponding and closely-allied mimetic West African 
forms Luralia anthedon and EL. dubia, connected like wahlbergi 
and mima by intermediate varieties, are similarly the di- 
morphic forms of a single species.” Mr. Marshall’s conclusion 
concerning the Eastern species was confirmed by the late 
Mr. A. D. Millar in 1909 (Trans. Ent. Soc., 1910, p. 498), 
and the further prediction about the Western species is 
now, in 1911, verified by Mr. W. A. Lamborn. The Western 
problem is, however, the more complicated and interesting 
of the two; for Hwralia dubia is not a simple mimetic form 
like mima, but is itself modified in the Oni district into three 
subordinate forms, in mimicry of (1) Amauris egialea, Cram., 
with much yellow in the hind-wings, (2) the most strongly 
white-marked of the local forms of Amauris psyttalea, Plotz, 
(3) Amauris hecate, Butl., and the darkest forms of A. psyttalea 
which closely resemble them. The hereditary influence of 
the parent dubia upon its dubia offspring was clearly evident 
in Mr. Lamborn’s families. 
[It may be added that Mr. Lamborn has now bred families 
from three dubia parents of various forms, and one from 
an anthedon parent, all captured at Oni in March of the 
present year. Both anthedon and dubia appeared in all the 
families. The numbers of the offspring are very large, and 
the two forms always bear a simple numerical relationship 
to each other, such as we should expect to see in a Mendelian 
pair. At the date of the meeting (June 7) only two of 
these families, both from dubia parents, had arrived in this 
country.—E. B. P., Aug. 7, 1911.] 
