370 Mr. H. W. Bates on the Longicorn Coleoptera 
testaceous ; fourth joint dilated. Thorax with a few large pune- 
tures and an elevated dorsal line fulvous; detlexed sides, and a 
triangular dorsal spot with the apex scareely reaching the ante- 
rior margin, black. Elytra elongated, the dilatation commencing 
very gradually before the middle, and at two-thirds the length 
more abrupt ; at the apex singly rounded and faintly emarginated ; 
surface finely setose, closely punctured, and with two indistinct 
raised lines united before the apex; dilated margins (outside the 
lateral carina) shagreened, and traversed by a raised hne from 
base to apex; colour black, with a basal spot on each shoulder 
(bending towards the suture), and a broad fascia beyond the mid- 
dle, fulvous; the edges both of the humeral spot and the fascia 
jagged. Body beneath fulvo-testaceous ; sides of breast black, 
and abdomen with two rows of brown spots. Legs black; coxz 
and inside of femora testaceous. 
Kga; found only on leaves of trees in the deep forest. 
Genus Hemiopuvus, Serville. 
Serville, Ann. Soc. Ent. Fr. 1835, p. 50. 
The chief difference existing between this genus and Amphio- 
nycha resides in the antenne, which in Hemilophus are formed 
almost the same as in Spathoptera and Lyeidola: that is to say, 
the third and fourth joimts are disproportionately elongated, 
occupying together, in some species, nearly one-half the total 
length of these organs ; they are, besides, thickened and densely 
hirsute, sometimes ciliated. Both genera have a strongly ele- 
vated lateral carina, bifid claws, and very narrow prosternum. The 
elytra in Hemilophus are sometimes a little dilated before the 
apex, but in Amphionycha never show any trace of dilatation. 
Hemilophus fasciatus, n. sp. 
H, elongatus, sublinearis, ante apicem paulo ampliatus ; capite fulvo, 
vitta laterali maculaque triangulari occipitali nigris ; thorace nigro, 
vitta utrinque laterali fulva; elytris nigris, macula cuneiformi hu- 
merali fasciaque recta mediana fulvis; antennis nigris, articulo 
quinto basi rufo, articulis quarto et quinto paulo incrassatis, dense 
breviter setosis. Long.5lin. o¢. 
Head tawny yellow, with a triangular spot on the occiput and 
a stripe behind each eye black; forehead convex and marked 
with a deeply impressed line. Antenne a little longer than the 
body (¢); black, with the base of the fifth joint reddish ; basal 
joint clothed with longish hairs ; third and fourth joints together 
longer than the whole of the following joints, thickened, linear, 
densely clothed with short hairs; remaining jomts clothed spa- 
ringly with very short hairs. Thorax coarsely punctured, leav- 
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