38 Mr. F. P. Pascoe on some new or little-known 
short; posterior coxe remote, with the first abdominal segment 
largest. Length 5 lines. 
The type of this very rare genus, Petalophora costata, is from 
Java, and differs from the one described above in its canaliculate 
prothorax, elytra with three cost only on each, but above all by 
its having a triarticulate club. Under ordinary circumstances, or if 
the latter character had been accompanied by any difference in 
habit, the two could not have been treated as congeneric ; as it is, 
there is such a decided affinity between them, that their separation, 
except as species, would not be justifiable. Petalophora, from the 
greater size of the basal segment of the abdomen and the widely 
separated posterior coxee, must be placed with the Bothriderine near 
Sosylus, and not with the Colydiine as has been done in the ‘ Genera 
des Coléoptéres,’ the learned author not having seen it, and Pro- 
fessor Westwood having omitted to give the only two characters by 
which its position could be ascertained. 
Merorrustzs [ Colydiide }. 
Caput receptum, subverticale. Antenne breves, liberee, clava biarticulata, 
compressa, rotundata, sulco antennario laterali. Prothorax suboyatus, 
levis. Elytra subparallela, carinata. Tibie breves, subtrigonate, 
calearate. Tarsi elongati, articulo primo majore. Corpus cylin- 
dricum. (Coxee posticze distantes. Abd. segmento primo majore. ) 
The specimen from which this diagnosis is drawn being unique, 
I have not been able to examine the parts of the mouth; the genus, 
however, affords very distinctive peculiarities in its external cha- 
racters, approximating most nearly to Petalophora, but differing in 
the form of the prothorax, antenne, &e. 
Metopiestes hirtifrons. (Pl. ILI. fig. 2.) 
M. fusco-castaneus, nitidus; fronte fulvo-tomentosa; antennis rufescen- 
tibus. 
Hab. New Guinea (Dorey). 
Subcylindrical, dark chestnut-brown, shining; head deeply inserted 
in the prothorax, subvertical, the front densely covered with short 
fulvous hairs ; antennze 11-jointed, free at their insertion, the basal joint 
ovate, incrassate, the second longer than the following, pyriform, inserted 
at the top and side of the first, the rest transverse, the two last forming 
a round compressed club; antennal groove short, distinct, lateral ; 
eye rather large, ovate; lip transverse; prothorax somewhat ovate, 
smooth, very convex, rounded in front and at the sides, slightly con- 
tracted behind, bisinuate at the base, covered with small, oblong, 
rather distant punctures, a short semicircular elevated line close to 
