The Genus _Nephele_, Hübner (_Zonilia_, Boisduval), contains several South African species, _e.g._ _Sphinx Peneus_, Cramer; _fumosa_, Boisduval; _comma_, Gerstaecker; _viridescens_, Walker, and the beautiful _argentifera_, Walker. Several species of the silver-striped hawk-moths occur in South Africa, as _Chœrocampa Charis_, Boisduval; _Schenkii_, Moschler; _Thyelia_, Linn. (_Eson_, Cramer), etc. The lovely _Smerinthus Dumolinii_, Boisduval, is from Natal. The clear-winged _Sesia Hylas_, Linnæus, was captured at Gubuleweyo. And lastly, it may be mentioned that the Rev. H. Rowley sent the _Macroglossa hirundo_, Gerstaecker in Decken’s Reisen in Ost-Afrika, pl. 15, fig. 7, from the Zambesi. It may also be mentioned as a remarkable circumstance in entomological geography that the grand _Urania_ (_Chrysiridia_) _Rhipheus_, supposed until quite recently to be confined to Madagascar, and to be the only old world representative of the splendid new world _Uraniæ_, has been found on the east coast of Africa, near Zanzibar. Gerstaecker has figured the continental individual as a distinct species, but specimens which I have examined appear not to differ specifically from the Madagascar ones. Family ZYGÆNIDÆ. In this family a beautiful species of _Zygæna_, closely allied to the very striking _Z. ochroptera_, Felder, was taken at Tati, which may be thus characterised:-- ZYGÆNA TRICOLORATA, Westw. Chalybea, humeris alisque anticis aurantiacis, harum margine apicali nigro; alis posticis sanguineis limbo nigro ante angulum analem desinente. Expans. alar. antic. unc. 1, lin. 5. Obs. _Z. ochroptera_, Felder, differt colore alarum limboque nigro multo angustiori. Another species from Gubuleweyo is allied to Felder’s _Euctenia Zygænoides_ (pl. 82, f. 21), but has the sanguineous portion of the hind wings divided by a transverse black band. On the under side the white spots at the base and middle of the fore wings are sanguineous. The beautiful South African species, _Z. caffra_, Linn., _ampla_, Walker, _concinna_, Walker (Delagoa Bay), and especially _Z. negamica_, from Damara Land and Lake Nyassa, require careful examination as to their generic position. Several species of _Procris_ and _Syntomis_ were also taken by Mr. Oates. Family AGARISTIDÆ. This family is represented in Mr. Oates’s collection by a beautiful undescribed species of _Eusemia_, allied to _E. Euphemia_, Cramer, pl. 345, fig. A, _E. longipennis_, Walker, Butler, Exot. Lep. Brit. Mus. pl. 5, fig. 5; _E. pallida_, Butler, l. c. fig. 3; and _E. contigua_, Butler, l. c. pl. 4, f. 8:-- EUSEMIA ADULATRIX, Westw. (Plate G, fig. 1, and Plate H, figs. 3, 3_a_, 3_b_.)