169 
MR. J. S. BALY ON SOME GENERA 
Antennae very slender, filiform, equal to the body in length, 
the second joint very short, the third and fourth each equal in 
length to the first ; front impressed just above the encarpae with 
a deep fovea ; encarpae thickened, trigonate ; clypeus concave, 
transversely sulcate. Thorax nearly twice as broad as long . 
sides straight and slightly diverging from the base to beyond the 
middle, thence obliquely rounded to the apex ; anterior angles 
slightly produced, obliquely truncate, the hinder ones acute ; 
upper surface convex, very minutely punctured ; disk impressed 
with a broad transverse excavation, which terminates at some 
distance from the lateral margin, but is more deeply excavated at 
each end. Elytra oblong, convex, transversely excavated below 
the basilar space, and again obsoletely on the outer disk about 
its middle, the humeral callus thickened ; surface finely punc- 
tured. 
2. CEnidea Jacobyi. Anguste oblonga, postice paullo ampliata, 
convexa, nigra, nitida, labro antennisque flavis aut fulvis, pectore 
abdomineque rufo-piceis ; thorace transversim sulcato, sulco utrinque 
fortiter foveolato ; elytris oblongis, infra basin transversim excavatis, 
fere impunctatis, rufis, apice plus minusve nigris. Long. 4-4 \ lin. 
Mas. Clypeo transversim eoncavo ; labro ampliato, concavo ; abdominis 
segmento anali trilobato, lobo intermedio ad apicem leviter excavato. 
Fem. Clypeo transversim sulcato ; labro paullo incrassato. 
Var. A. Labro nigro aut nigro-piceo ; elytris totis nigris. 
L lab. Penang; Malacca; Borneo, Sarawak; Sumatra ( Wal- 
lace ). 
Antennae slender, equal to the body in length, and clothed with 
erect hairs in the 6 , rather shorter in the $ ; clypeus in the 
6 transversely trigonate, concave ; labrum in the same sex 
dilated, rather deeply concave ; clypeus in the $ deeply sulcate 
transversely, the labrum thickened. Thorax rather more than 
one half broader than long ; sides straight and slightly diverging 
from the base to beyond the middle, thence converging to the 
apex ; disk deeply excavated transversely, the sulcation termi- 
nating some distance within the lateral margin, more deeply 
excavated at each end. Elytra oblong, convex, transversely 
excavated below the basilar space, very minutely punctured, the 
punctures only visible under a lens. 
