158 
MR. .T. S. BALT ON SOME GENERA 
2. Charidea Fortunei. Elongata, picea, nitida, antennis nigris, 
supra subnitida, pube suberecta grisea sparse vestita ; tliorace elytris- 
que sanguineis; tliorace quam longo paullo latiore, fortiter punctato, 
disci medio bicalloso, callis lsevibus ; elytris parallelis, transversim 
convexis, fortiter punctato-striatis, utrisque bicostatis. Long. 
2f lin. 
Sab. Northern China ; collected by the late Mr. [Fortune. 
Head clothed with griseous hairs ; vertex convex, separated 
from the front by a deep transverse groove ; encarpae contiguous, 
pyriform, longer than broad, extending downwards as far as the 
insertion of the antennae, interantennal space excavated ; lower 
portion of clypeus transversely excavated ; antennae nearly as 
long as the body, moderately robust, filiform, the second joint 
short, the third nearly twice its length, the fourth and succeeding 
ones each equal in length to the third. Thorax broader than 
long ; sides straight and nearly parallel from the base to beyond 
the middle, thence slightly rounded and obliquely converging 
towards the apex, the anterior angle obtuse, the hinder one acute ; 
upper surface moderately convex, coarsely and strongly punc- 
tured ; on the disk are two large, slightly raised smooth callo- 
sities, separated from each other by a narrow groove, but bounded 
at the base, apex, and the outer margin by a deep irregular sulca- 
tion ; surface of disk more or less stained with piceous. Elytra 
rather broader than the thorax, parallel on the sides, transversely 
convex, not excavated below the basilar space ; each elytron with 
twelve rows of large, deeply impressed punctures ; the fourth 
interspace at its base, the fifth and ninth for nearly their whole 
length, confluent at their apices, strongly costate ; upper portions 
of the tenth and eleventh interspaces subcostate. 
This species may be known from O. punctato-striata by the 
pubescence on the upper surface of the body, by the strongly 
raised costae on the elytra, and by the piceous colour of the 
head, under surface, and legs. The anterior acetabula in this 
insect are entirely closed. 
Gfenus Platyxantita, Bali/. 
1. Platyxantha clypeata. Elongata, parallela, dorso deplanata, 
flava, nitida, thorace, mandibulis apice oculisque nigris ; tliorace 
transverso, lateribus e basi ad ultra medium rectis, paullo divergenti- 
bus, bine apicem versus convergentibus ; disco modice couvexo, laevi, 
utrinque fovea parva, plus minusve distincta, impresso ; elytris paral- 
lelis, ad latera convexis, dorso deplauatis, tenuiter confuse puuctatis ; 
