Genera of the Cussonidce. 559 
gated, less constricted in front, and perfectly even (there 
being no traces either of keel or depression) ; in all its 
coxje being subequally apart (even the anterior ones being 
widely separated) ; and in its feet being much less in- 
crassated, and with their third joint small and simple. 
Its elytra too are more decidedly parallel (or less fusiform) 
than in Catolethrus ; its body is less depressed ; its colour 
is nearly black; and its eyes are so extremely simken as 
to be with difficulty detected. 
[70. Proeces (Schonherr, Ge?i. et Spec. Cure. iv. 
1080. 1838). — The present genus is one of six which 
I have not been able to inspect; but the two species to 
contain Avhich it was established by Schonherr, and which 
are apparently peculiar to Madagascar, are stated by 
Lacordaire to be very similar at fu'st sight to the smaller 
members of Catolethrus, and quite as narrow. Their 
rostrum however is said to be slenderer and more cylin- 
drical ; their antenna are shorter and less thickened, — - 
with the second funiculus-joint longer, and the club larger 
and more abrupt ; and their legs arc thinner, with the third 
articulation of the feet simple and not at all wider than 
those which precede it.] 
71. Phacegaster {nov. gen.). — Although it does not 
tally precisely with the diagnosis, I have little doubt that 
the insect for which the present genus is proposed is the 
Catolethrus nasalis of Boheman, from Brazil. At any rate 
several examples are now before me (collected by Mr. Fry 
near Rio Janeiro, and in the province of S'* Catharina) 
which I feel satisfied are congeneric, and I believe also 
conspecific, with the nasalis ; but it is nevertheless quite 
evident that they caimot be associated with the Catolethri. 
Not to mention their much larger size, they differ essen- 
tially fi'om the latter in the form of their rostrum — which 
is very much broader, somewhat depressed above, and 
gradually (though not very considerably) A\ddened fii-om its 
base to its apex ; and the antennfc are implanted into it 
nearer to the middle point. In other respects, Phacegaster 
is remarkable for a great peculiarity in its first and second 
abdominal segments — each of which are furnished with 
two rounded, ocelli-YikQ spaces, filled up with coarse 
granules. The two on the basal segment are rather larger 
and more widely separated from each other than those on 
the second one, and are placed before the middle; whereas 
