D7 
collection which are probably undescribed but may be among Dr. 
Baly’s, and to limit myself to describing new species that seem 
very decidedly different from those already characterised. As Dr. 
Baly’sspecies are scattered through 3 separate memoirs without any 
connected classification it will be convenient for me to include in 
this memoir some brief notes on their probable relation to the 
species I describe below. IJ annex a tabular statement of the 
characters of the new species I now describe, and have been able 
to work into that statement by studying Dr. Baly’s descriptions 
the characters of four of his species with tolerable confidence ; of 
the remaining eight I have discussed P. Wilsoni below (under 
P. propinqua) and P. fuscomaculata (under P. tumbyensis). 
There still remain six on which I make the following notes :— 
P. australica is probably near P. propinqua calida and longior, 
but cannot be placed in my tabulation as the information is 
wanting whether its elytral interstices are costiform towards the 
apex. It seems to differ inter alia from propinqua by its pro- 
thorax having no basal impressions, from calida by its prothorax 
being rugulose laterally, and from /ongior by there being a row 
of large punctures on its elytra between the suture and the 
abbreviated stria. P. carinata I cannot place among my species, 
but it seems to be a very distinct species by the presence of a 
longitudinal linear carina on its clypeus. P. Hrichsoni must be 
near varipes, differing inter alia by its elytral interstices subcos- 
tate near the apex. Concerning P. Jaticeps I cannot form any 
clear idea. P. megalopoides is probably near calida, differing 
inter alia by the front angles of its prothorax acutely directed 
outward. P. submetallescens is no doubt near longior, but differs 
by its elytral stria being “‘ sulcate,” whereas in Jongior the stria 
are quite lightly impressed. 
It should be noted that, as far as my observations go, there are 
sexual differences in some at least of the Australian species of 
this genus in the antenne being longer and the head and _ pro- 
thorax a little less closely and strongly punctured in the males 
than the females, so that slight differences in these characters 
cannot be relied on as specific. 
A. Species not exceptionally parallel in form. 
B. Interval between the eyes inuch greater than 
the width of an eye. 
C. Prothorax strongly punctured. 
D. Metallic species. 
E. The abbreviated subsutural stria of 
the elytra quite traceable. 
F. Front femora (at least partly) con- 
colorous with their tibiz. 
G. Elytral interstices wide and but 
little convex behind. 
H. Prothorax considerably less 
than twice as wide as long. 
