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REPORT ON ZOOLOGY, MDCCCXLII : 
hips lying in corresponding sockets. This gives an excellent character 
for the group of the Prionidce. In some, as Macrodontia, the proster- 
num is not separated by a suture, and the whole prothorax consists of a 
single piece, so that the separation of the Prionidce, from the rest of the 
Cerambycidce, cannot be justified on this ground; at least if the larvse 
be also taken into consideration, which have the greatest agreement with 
the Cerambyces proper, and particularly the Lectures. 
The new genus Rhipidocerus, Westwood (Transact. Ent. Soc. iii. 
p. 70, t. 3, f. 2), is one of the few forms of Cerambycidce with flabellate 
antennas ; in both sexes these are of the length of the body, in the male 
the third and following joints have each a long fan-like branch, in the 
female they are simple ; the prothorax has one spine on each side ; the 
elytra are simple and rounded at the end ; the legs short and similar. 
In many points this beetle resembles a Lamia ; in others, particularly 
the minutely punctured elytra, a Stenocorus. Westwood places it 
between Phoenicocerus and Polyoza ; it approaches nearest the latter 
genus, at least the parts of the mouth, eyes, and joints of the antennae 
indicate its situation among the Prionidce. Rh. australasice ; dark 
green with fine yellowish hairs, and reddish-brown antennae and legs ; is 
a native of New Holland. The generic name is actually identical with 
Rhipicera. 
A new European form of Prionidce has been described by Mulsant, 
under the generic name of Prinobius (Ann. d. Sc. Phys. publ. par la 
Soc. d’ Agriculture d. Lyon, v. p. 107, t. 11, f. 1). It resembles Macro- 
toma, having likewise the third antennal joint as long as the two 
following ones put together ; the eyes are almost without emargination ; 
the prothorax is transverse and quadrangular, having a small tooth on 
the posterior angles ; the tibias are, however, unarmed ; but I know not 
wherein it differs from Er gates. Pr. Myardi is found in Corsica, 
under oak bark ; it greatly resembles Pr. Gerrnari, Dej., {scutellaris, 
Germ.) and it is principally distinguished by the broader prothorax ; it 
may very likely be the male of that insect, particularly as in Er gates 
faber, a similar distinction of sex is seen ; at all events, the Pr. Gerrnari 
is diffused over the islands on the west side of Italy. The Berlin col- 
lection was enriched by Schuppel with a beautiful specimen of this rare 
insect, which was caught at Cagliari in Sardinia. 
Newman (Entomol. p. 351) has founded a new genus Cnemoplites, which 
ought to be received ; it has the anterior tibiae dentated on the outer side. 
He includes in it Pr. spinicollis, MacLeay (King’s Voy. ii. 449), to 
which he adds, as a synonyme, Mallodon australis, Boisd. ; also a new 
species Cn. edulis from Port Philip ; and lastly, Mallodon manillce, 
Newman (Entomol. p. 247), from Manilla. Macrotoma australis of 
the reporter (Arch. p. 218), from Van Diemen’s Land, may be added, 
and perhaps also Mallodon insular e, Hope (Proc. Ent. Soc. p. 48), 
252 
