This seems congeneric with the Arcturus sparshalli of Mr. Curtis, described in the 7th volume of the British Entomology, folio 336, as a British insect; but there seems doubt of the correctness of this. The name, having been pre-occupied in Natural History, has been changed by Mr. Westwood to Trichetra, in page 92 of the Generic Synopsis, appended to his Introduction to the modern Classification of Insects. The Bombyx tristis is figured (figure 2) on the same block with the T. Nephthis. Agagles amicus, new species. A new species, at first sight resembling Leptosoma annulatum, Boisduval (Voyage de l'Astrolabe 1 page 197 plate 5 figure 9) but differs; the thorax having four longitudinal, narrow, light-coloured lines, the band across the upper wings is more continuous, and the circular spot on lower, larger. It is about the same size, and has the body ringed with black and yellow; the legs are brown; the femora on underside fringed with whitish hairs, simply pectinated; many of the pectinations of the antennae end in a bristle-like hair; palpi somewhat prominent; last joint pointed. ... The illustrative figures were drawn by Mr. B. Waterhouse Hawkins, and engraved on wood by Mr. Robert Hart, of Gloucester Street, Queen's Square. THE END.