Head small, and margined in front; being furnished with a single horn that bends towards the thorax. Thorax margined, and dark brown (the general colour of the insect); being armed with three remarkable horns, whereof two are placed in front, one on each side; being very strong and broad one way, but thin the other, and branched at their extremities. The other horn is placed on the hinder part of the thorax, being short and thick at bottom, but sharp and pointed at top; springing from a protuberance that almost covers the escutcheon, which is small and triangular. All these horns are immoveable, and their situations occasion a most remarkable hollowness or cavity in the thorax, which {59}is smooth and shining; but the protuberance, next the scutellum, is full of punctures, and the edge notched. Elytra shining, punctured, and slightly striated. Abdomen and legs red brown, and hairy; the hinder ones being remarkably thick and strong, with two broad tibial spurs. The middle and fore tibiæ are strongly dentated, each being furnished with a thick spur. Anterior tibiæ with the first joint long and slender, but in the middle and hinder tibiæ, exceeding thick and strong. PLATE XXXI. [Illustration] LAMIA (STERNOTOMIS) MIRABILIS. Plate XXXI. fig. 1. ORDER: Coleoptera. SECTION: Longicornes. FAMILY: Lamiidæ. GENUS. LAMIA, _Fabr._ Cerambyx P. _Linn._ (SUBGENUS: Sternotomis, _Perch._) LAMIA (STERNOTOMIS) MIRABILIS. Nigra, thorace spinoso, antice fasciis, elytris punctis viridibus, his basi mucronatis. (Long. Corp. 10½ lin.) SYN. Cerambyx Mirabilis, _Drury_, _App. vol._ 2. Lamia pulchra, _Fabr. Syst. Eleuth._ 2. 285. 25. _Syst. Ent._ 171. 6. (nec C. pulchra, _Drury_, _vol._ 1. _t._ 32. _f._ 6.) _Oliv. Ent._ 488. 115. _t._ 22. _f._ 167. HABITAT: Sierra Leone. Varied with beautiful green and black colours, the former exceedingly bright. Head green, with two others running downwards from the eyes. Jaws with the upper part green, the extremities black, with four green palpi. Antennæ black, ten-jointed, the basal joint being thickest. Thorax green, with black streaks running round it, the sides terminating in an obtuse point. Scutellum very small, black, and triangular. Elytra black and margined, beautifully streaked and spotted with green: the former running across the anterior part, the latter placed near the extremities. Abdomen green, with black rings. Legs green, streaked with black. Tarsi green at top, brown beneath. LAMIA (AGAPHANTIA) BIPUNCTATA. Plate XXXI. fig. 2. ORDER: Coleoptera. SECTION: Longicornes. FAMILY: Lamiidæ. GENUS. LAMIA, _Fabr._ Cerambyx P. _Linn._ (SUBGENUS: Agaphantia, _Serv._) LAMIA (AGAPHANTIA) BIPUNCTATA. Grisea; thorace spinoso, frontis cornu porrecto apice emarginato incurvo, elytris puncto nigro posticé flavo. (Long. Corp. fere 1 unc. 3 lin.) SYN. Cerambyx bipunctatus. _Drury_, _App. vol._ 2.