_S. Apolloniæ_ similis at multo minor et pallidior, ocello alarum anticarum ovali, fascia tenui extus connexa, hac prope apicem alæ absque maculis duabus nigris; alis posticis basi albis absque fascia indistincta subbasali, ocello ovali extus cum fascia tenui fusca conjuncta, fascia 2da submarginali ut in _S. Apollonia_; thoracis dorso macula livido-fusca; incisuris abdominis livido-marginatis. Expans. alar. antic. unc. 2¾. Habitat in Africa merid.-orient. In Mus. Hopeiano. SATURNIA DYOPS, Maassen and Weymer, Beitr., fig. 21. This species is also closely allied to _S. Apollonia_, but wants the ocellus in the hind wings. Maassen obtained it from Natal. Specimens from South Eastern Africa, and from Angola (Monteiro), are in the Hopeian collection at Oxford. SATURNIA HYPERBIUS, Westw. Alis anticis ferruginosis, puncto minimo vitreo ad apicem cellulæ; striga recta obliqua pone medium alæ cinerea, area pone strigam magis aurantiaca, margine apicali plumbeo-tincto, ciliis rufis; alis posticis fulvis ocello mediocri medio cinereo (medio albido) circulo nigro; striga angusta cinerea inter ocellum et marginem posticum plumbescentem, ciliis rufis: alis subtus saturatioribus, venis flavis, anticis macula rotunda nigra, medio vitrea; cellula in posticis fere obliterata, strigaque pone medium angustiori et minus distincta; corpore rufo, abdomine magis fulvo. Expans. alar. antic. fere unc. 5. Habitat in Africa merid. (D. Buxton.) In Mus. Hopeiano. Family BOMBYCIDÆ. The family BOMBYCIDÆ appears to be rich in species of the sub-family LIMACODIDES, the caterpillars of which are clothed with short erect bristles, which are capable of inflicting poisonous wounds; their cocoons are very solid and egg-shaped. Notwithstanding their defensive appendages they are subject to the attacks of parasites, and in the “Transactions of the Entomological Society,” 1876, pl. 10, I have given the history of a curious dipterous insect, _Systropus crudelis_, which destroys individuals of one of the species of this group. Mr. Oates obtained a number of species, the majority of which are, however, in a very mutilated condition. Of one, which is a very showy insect and appears to be undescribed, I give the description below:-- LIMACODES ARGENTIFERA, Westw. Læte pallido-viridis, alis anticis basi macula media fasciaque subapicali valde curvata e guttis argenteis, singulis guttis annulo brunneo cinctis, fascia externa e medio marginis postici versus apicem extensa at guttis sensim decrescentibus; alis posticis abdomineque fulvis. Expans. alar. antic. unc. 1¼. _Pantoctæniæ Gemmanti_, Felder, Reise Novara, pl. 82, fig. 16, proxima. Habitat prope Gubuleweyo.