37 
_A. Lateral and front face of prothorax with an abruptly erect edging like 
that of the elytra. 
B. The prothoracic edging opaque, 
strongly defined both above and 
below, rarely convex, and usually rugulose. 
C. The prothoracic edging not (or scarcely) narrower than that of the 
elytra. 
D. Elytra with distinct rows of granules. 
E. Intervals between rows of elytral granules devoid (or nearly 
so) of granules. 
F. Sutural carina of elytra not (when 
viewed from the side) straight and 
parallel with the margin of the 
elytra .. 
G. A strongly elevated longitudinal 
carina on prothorax in “front of 
the basal tubercle on the elytra 
GG. No longitudinal carina on disc 
of prothorax .. 
FF. Sutural carina of elytra (viewed 
from the side) parallel with the edge 
of the lateral margin and straight in 
the middle (about half) OT of its 
length 
EE. Theintervals between rows of ely tral 
granules bearing many similar granules 
DD. Elytra not having distinct rows of 
granules 
CC. The prothoracic edging much narrower 
than that of the elytra. 
D. Elytra with well-defined rows of granules 
DD. Elytra not having defined rows of 
granules... Me 
‘BB. The prothoracic edging nitid, " smooth, 
' rarely strongly defined below, and usually 
convex. 
C. The prothoracic edging defined below by a 
earina-like rib (as in princeps, aridus, &c.) 
CC. The prothoracic edging not defined below. 
D. Dise of elytra with numerous small 
obtuse granules. 
E. Elytra at their widest close to base ... 
EE. Elytra at their widest very far 
behind base 
DD. Disc of elytra not granulose ‘but with 
exceptionally close and conspicuous 
puncturation 
AA. Lateral and front face of prothorax not 
having an abruptly erect edging like that of 
the elytra. 
B. The overlapping front processes of prothorax 
normally wide. 
C. The elytral puncturation extremely fine, — 
searcely distinct 
CC. Elytral puncturation very distinct (about 
as much so as in pallidus, Macl.) 
BB. The era bene front Pe of f prothorax 
very narrow Sah 
[(? Hope). 
princeps, Macl. 
aridus, Blackb. 
lubricus, Blackb. 
interioris, Macl. ? 
engens, Blackb. 
Blackb. 
[(? De Bréme). 
colossus, Macl. 
debilis, 
(2? De Bréme). 
intermedius, Macl. 
scaphiformis, Blackb. 
modicus, Blackb. 
pallidus, Macl. 
subseriatus, Blackb. 
elongatus, Blackb. 
brevicostatus, Blackb. 
