38 
H. princeps, Hope. Notes on this species will be found below 
under the heading H. subseriatus, sp. nov. 
H. princeps, Macl. (? Hope). This species bears considerable: 
resemblance to H. modicus, Blackb. It differs by the much 
better defined, and seriate, discal granules of its elytra; by the 
presence of a longitudinal strongly elevated carina on its pro- 
thorax in front of the basal tubercle ; by the basal tubercle being 
much stouter and less spine-like ; by the erect edging of its pro- 
thorax being externally opaque, rugulose, and limited below by a 
carina-like rib, &e. 
H. aridus, Blackb. In this species the erect edging of the 
prothorax is very rugulose and distinctly limited below by a 
carina-like rib. 
H. lubricus, Blackb. The erect edging of the prothorax is 
opaque but scarcely rugulose, limited below by a very well 
defined rib. 
H. interioris, Macl.? The erect edging is less opaque than in 
the preceding and very asperately punctulate, limited below by a 
distinct rib which however is not sharply cariniform. 
H. ingens, Blackb. The erect edging is entirely opaque and 
non-rugulose, not limited below by a defined rib. 
H. debilis, Blackb. The prothoracic erect edging resembles 
that of H. lubricus. 
H. colossus, Macl. (! De Bréme). Prothoracic edging resembles 
that of H. lubricus. 
H. intermedius, Macl. (? De Bréme). This is the only species 
known to me (of those in Sir W. Macleay’s “ first group” having 
an abruptly erect prothoracic edging which is subnitid, levigate 
and convex) in which the edging is limited below by a defined 
carina-like rib. The insect when immature is of a very pale 
brown colour. 
H. scaphiformis, sp. nov. Ovalis, postice angustatus; minus 
latus; sat nitidus; sat glaber; piceo-niger, partibus 
lateralibus antennis pedibusque nonnihil rufescentibus ; 
antennis sat elongatis; prothorace (in disco) postice tuber- 
culo conico armato, ad latera crebre subtilissime granulato, 
externe (a latere viso) cum elytris margine reflexo ad _per- 
pendiculum directo (hoc in prothorace et in elytris equaliter 
lato, nitido fere levi, convexo, subtus haud carina deter- 
minato) instructo, processubus anticis perlatis, angulis 
posticis subacutis retrorsum directis ; elytris in disco crebre- 
subtilissime (vix distincte) punctulatis et granulis parvis 
obtusis confuse dispositis sat crebre ornatis, sutura carinata, 
parte laterali valde reflexa, crebre distincte punctulata et 
puncturis majoribus nonnullis prope discum impressa. 
Long., 14—15 1.; lat., 8—85 1. 
