Mr. F. P. Pascoe on new Genera of Cerambycidse. 307 Darjiling. This species is a typical Diplommatina, with strong costulation and a well-developed columellar tooth. The animal is sketched as it appears just emerging from the shell. The eyes, as will be seen, are distinctly lateral, as in Cyclophoims. I can trace no difference between the animal of this form and that of the smooth or spirally ribbed species of the Indian peninsula, which are by Pfeiffer classed as Arinia, in the neighbourhood of Pupina, in a different family, and even a distinct suborder from their nearest allies the typical Diplom-matime. Central India, Feb. 1867. XLV. — Characters of some new Genera of the Coleopterous Family Cerambycidse. By Francis P. Pascoe, F.L.S., F.Z.S. &c. The eighth volume of the great work of Prof. Lacordaire being nearly ready for the press, I am desirous of publishing the fol-lowing descriptions of some new genera of the family to which that volume will be, with the Prionidse, entirely devoted, in order that they may take their place in that work, the plan of the author not permitting him to notice any genera which have not been published. These genera do not include several new forms discovered by Mr. Wallace in the Malayan Isles, which must unavoidably stand over for the ' Longicornia Malayana ' publish-ing by the Entomological Society. Chorothyse. ( $ ). Antenna breviusculse, 1 2-artieulat8e, scapo perbrevi. Elytra abbreviata, intra excavata. TibicB posticae elongatse, eurvatse, compressae. Abdomen breve, segmentis duobus basalibus multo majoribus. Head exserted, transverse anteriorly ; clypeus broadly emar-ginate. Eyes large, reniform. Antennae rather short, 12-jointed, a little thickish, distant at the base ; scape very short, obconic ; the third joint twice as long, the following gradually shorter, the last smaller and ovate. Palpi short, cylindrical. Prothorax transverse, broader than the head, rounded at the sides. Elytra short, hollowed out along the sutural margin, rounded at the apices. Legs unequal, anterior and intermediate short ; poste-rior tibia3 elongate, curved, and compressed ; tarsi short, narrow. Anterior coxae exserted, contiguous. Pro-and mesosterna very narrow. Abdomen short, the two basal segments much larger than the rest, the second and following excavated, the excavation filled with hairs. 23*
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