282 
SOUTH-xiFEICAN BUTTEKFLIES, 
species — five being near allies of the former and two of the latter — 
which have since been described are all confined to the Ethiopian 
Region. Of these, one, E. Drucei (Butl.)/ belonging to the Dubia 
section, inhabits Madagascar ; three, viz., Dtihia, Dinarclia, Hewits., 
and A7ithedo7i, belong to Tropical Western Africa north of the Equator ; 
Damoclinay mihi, is found in Angola ; Usamhara, Ward, an ally of 
Anthcdon, was discovered in Eastern Africa a few degrees south of the 
Equator ; and Mima, Trim., Wahlbergi, Wallengr., and Deceptor, Trim., 
seem to be limited to Natal and Zululand. All the species have a 
peculiar /rtat's, six of them very closely mimicking the same number of 
the Danaine genus Amauris inhabiting their respective localities, and 
the remainder being probably imitative (less perfectly) of somo of the 
same kinds of Amauris, or possibly of certain forms of that genus not 
yet known. It is worthy of remark that while in Diadema close 
mimicry of other butterflies is confined to the female, in Eumlia both 
sexes are equally well disguised. 
Although the Anthedon section, with its broad white patches, has so 
different a superficial aspect from that of the Duhia section, in which 
the white or yellowish spots of the fore- wing are small, all the forms 
known are really most intimately related. The white spotting of the 
head and thorax is identical in all ; and the fact of a male Mima 
having been taken paired with a female Wahlbergi is a further indica- 
tion of the close alliance existing between the sections. 
The few specimens of the two last-named species that I observed 
in Natal were confined to the outskirts of woods, where they frequented 
low trees ; their flight was slower and more floating than that of Diadema 
MisippiLS. All the three South- African forms present striking instances 
of mimicry ; E. miuia copying the Natalian variety of Amauris Echeria, 
E. Waldbcrgi most exactly simulating A. dominicanus, and the very 
rare E. dcccptor very closely resembling A. OcJdea. 
91. (1.) Euralia Wahlbergi, (Wallengren). 
Plate YL fig. 2 (^). 
Diadema Wahlhergii, "VVallgrn., K. Sv.-Ak. Handl., 1857, — Lep. Rhop. 
Cafi'r., p. 27, n. i. 
^Diadema Anthedo7i, Trim, [part], Rhop. Afr. Aust., i. p. 152, n. 91 
(1862) ; Trans. Linn. Soc, xxvi. pp. 511-512 (note) (1869); and 
Trans. Ent. Soc, 1873, P- i^^, 107 (note) , 9]. 
Euralia Anthedon^ Doubl., Yar. inarginalis^ But!., Ann. and Mag. Nat. Hist., 
i875) P- 395- 
Exp. al., 3 in. 4 lin. — 4 in. i lin. 
$ Black, with large p)atclies of iridescent white. Fore-iuiiig : an 
elongate, more or less distinct, longitudinal-oblique white streak in 
^ Mr. Butler {Trans. Ent, Soc. Loncl, 1874, p. 426) gives this form — which appears to be 
the Diadema dubia described by Boisduval in Faune Fnt, de Madag,, p. 40 — as a Panoiiea ; 
but there can be no doubt that it is really referable to Euralia. 
