73 
the thorax — the position they occupy in the genus Lophopcmm ; 
but the sides behind them are deeply sinuated, which gives the 
thorax a similar shape to that possessed by the typical Leiopi, 
5. Lophopceum acutispine, n. sp. 
L. latiusculum, depressum, hrunneum, postice cano marmoratum : 
thoracis disco obtuse tuberculato : elytris apice sinuato truncatis, 
angulo interno acuto, externo longe mucronato. Long. 5 5 lin. 
Head and antennae dingy brown, basal joint of the latter 
flexuous beneath. Thorax wide; disk obtusely tuberculated, 
sides with the lateral tubercle very prominent and acute ; colour 
dingy olivaceous brown, silky. Elytra rather broad ; shoulders 
prominent, lateral carina proceeding thence, strongly marked 
and acute, apex rather broadly and transversely sinuate-truncate, 
the internal angle acute, the external produced into a long tooth 
or spine ; the centro-basal ridge not much raised, but surmounted 
by a very high crest of hairs ; the surface is coarsely punctured 
only near the base ; the colour is the same as that of the thorax, 
but the posterior half is marbled with light grey. Body beneath 
silky brownish; legs the same, varied with grey. The basal 
joint of the tarsi is a little longer than the two following taken 
together. 
• Para ; on dead branches in the forest. 
6. Lophopceum cultrifer. White. 
^gomorphus cultrifer, White, Cat. Long. Col. Brit. Mus. ii. p. 374. 
griseus, fusco variegatus ; thorace supra sub tuberculato, dorso 
medio maculis duabus subtriangularibus fuscis, lateribus tuberculo 
apice acuminato et elerato : scutello fusco-griseo subcincto : ely- 
tris singulis basi subtuberculatis, medio tuberculo supra acuto et 
apice postice producto : elytris singulis apice fasciis duabus fus- 
cis : abdominis segmentis subtus lateribus fusco maculatis : pedi- 
bus griseis ; femoribus intus fusco punctulatis ; tibiis apice late 
fusco. Long. 6 lin.” (White, 1. c.) 
The elongated form and grey colour of this species give it 
some resemblance to ^gomorphus, in which genus Mr. White 
placed it ; but its depressed body would seem to suggest rather 
a relationship with the Oreoderce. The great length and flexuous 
shape of the basal joint of the antennse show, however, that its 
true place is amongst the Acanthocinitse ; and its strongly raised 
centro-basal ridges and acute lateral thoracic tubercles point out 
an affinity with the species I have grouped under the genus 
poeum. Its form is elongate-oblong and depressed ; the elytra 
have not very prominent shoulders, and do not taper to the apex ; 
they therefore have not the trigonal shape which is usual in Lo- 
phopoeum and Alcidion : as the species of these genera, however, 
