172 
MR. J. S. BALY ON SOME GENERA 
three apical ones stained with piceous. Thorax more than one 
half broader than long ; sides very slightly diverging and sinuate 
from the base to beyond the middle, thence converging towards 
the apex, the hinder angles subacute, the anterior ones slightly 
produced, obtuse ; disk transversely sulcate immediately behind 
the middle, the sulcation strongly impressed during its whole 
length. Elytra oblong, dilated posteriorly, convex, distinctly and 
rather strongly punctured, the puncturing nearly obsolete towards 
the apex ; the punctures on the anterior half of the inner disk 
irregularly arranged in double rows. 
The above species was confounded by Jacoby w r ith Buquetii, 
Guer., on which he founded the genus ; although similar in colo- 
ration to that insect, it is 'well separated by the structural 
characters in both sexes. 
4. Pseudocophora AMBCJSTA, Erichs. Nov. Act. Leopol. Carol, xv. 
1834, Suppl. i. p. 272. — Oblongo-ovata, postice paullo ampliata, 
convexa, fulva aut flava, antennis pallide flavis ; pectore, abdomine, 
pedibus posticis quatuor elytrorumque limbo externo nigris ; thorace 
transversim sulcato ; elytris subseriato-punctatis, nigro-limbatis. 
Long. 2^ lin. 
Mas. Elytris infra basin fovea magna, nigra, margine elevata, fundo 
quadridentata, dentibus duobus anticis bifidis ; abdominis segmento 
anali trilobato, lobo intermedio concavo. 
Fern. Abdominis pygidio apice trifido, lobo intermedio elongato 
tnberculo conico instructor segmento anali medio concavo-emar- 
ginato. 
Var. A, . Elytrornm limbo externo nigro obsoleto. 
Sal. Type, Luzon ( JErichson ) ; var. A, Celebes (Wallace). 
Antennae pale flavous, the third joint twice the leDgth of the 
second, rather longer than the fourth. Thorax twice as broad as 
long; sides slightly diverging and rather strongly sinuate from 
the base to beyond the middle, thence obliquely converging to 
the apex, the anterior angles slightly excurved ; disk trans- 
versely sulcate, the sulcation interrupted in the middle part of 
its course. Elytra similar in form to those of P. Buquetii ; 
their surface less strongly punctured, the subcostate interspaces 
being absent. The males may be known by the anterior pair of 
teeth on the subbasal fovea being distinctly bifid, not single as in 
the other species of the genus ; the hinder pair are formed as in 
P. Buquetii . 
