460 Mr. C. J. Gahan on new Longicorn Coleoptera . 
M. Fairmaire has recently published a short diagnosis of a 
species of this genus ( T . rufulipennis , Comptes Rend. Ann. 
Soc. Ent. de Belgique, 1889) which is apparently much more 
nearly allied to pectinicornis than is the species above 
described. 
Imerinus, gen. nov. 
Female . — Head with the front transverse, scarcely concave 
above, divided longitudinally by a fine median groove, and 
separated from the epistome by a deep, transverse, slightly 
arcuate impression. Last joint of palpi subfusiform. Eyes 
coarsely faceted. Antennae barely surpassing the elytra ; 
first, third, and fourth joints subequal, each shorter than the 
fifth, the sixth and succeeding joints decreasing in length. 
Prothorax strongly constricted near base and apex, tubercled 
at the middle of each side, and with four or five tubercles on 
the disk. Anterior margin of pronotum slightly produced 
and rounded ; posterior margin rounded in the middle and 
sinuate towards each side. Elytra each rounded at the apex 
and terminating in a short sharp spine. Legs increasing in 
length from the anterior to the posterior. Femora thickened 
below the middle. First joint of the posterior tarsus longer 
than the two succeeding joints combined. Prosternal process 
moderately broad, subcanaliculate along the middle, bilobately 
dilated posteriorly. The anterior cotyloid cavities closed in 
behind, strongly angulate externally. Intermediate cotyloid 
cavities wfidely open on the outside. Abdomen with the first 
ventral segment very long, the second much shorter, trun- 
cate, and thickly fringed with long hairs behind ; the 
remaining ventral segments almost entirely concealed. 
Of somewhat doubtful affinities, the genus will, I think, be 
best placed near the Phlyctenodides. 
Imerinus granuliferus , sp. n. 
Brunneo-ferrugineus, griseo subtiliter pubescens ; prothorace dorso 
utrinque bituberculato, tuberculo antico bifido obtuso, tuberculo 
postico conico ; elytris subtiliter sericeo-pubesceutibus, minute 
subsparsimque punctatis, granulis in seriebus ordinatis. J . 
Long. 25 mm. 
Hab. Imerina Mountains. 
Head and prothorax impunctate, the latter with an acute 
tubercle on the middle of each side and a strong transverse 
callosity close to the antero-lateral margin ; with four tubercles 
above, of which the two anterior are obtuse and each some- 
