259 
GG. Prothorax scarcely distinctly 
punctulate. 
H. Prothorax and elytra con- 
colorous or nearly so. 
I. Flattened ridgeof prosternum 
elongate-triangular 
II. Flattened ridge of proster- 
num with parallel sides 
HH. Prothorax red, in conspic- 
uous contrast to the 
elytra as. si 
FF. Elytra with a conspicuous 
common levigate space a 
little behind the scutellum 
EE. Form much more depressed 
than is usual in Rhizobius ... 
DD. Ventralsegmentsrufo-testaceous, 
in strong contrast to the 
black sterna. 
K. Puncturation of elytra close (as 
much soas in &. discolor, Er.) 
EE. Puncturation of elytra much 
less close 
CC. Elytra not as in the preceding 
group (“C”) 
D. Elytra spotted with fascicles of 
white hair ; 
DD. Elytra with a "sharply defined 
coloured pattern. 
E. Elytra finely punctulate 
EE. Elytra coarsely punctulate 
DDD. Elytra blue or metallic. 
EK. Elytra_ pale __ reddish, 
greenish opalescence .. 
KE. Elytra dark blue (general form 
very elongate) 
EEE. Elytra bright metallic blue 
(general ra oval) 
with 
DDDD. Elytra _ piceous, with ill- 
defined reddish blotches 
DDDDD. Elytra piceous, with the 
apex brightly sanguin- 
eous 
cecus, Blackb. 
debilis, Blackb. 
Toowoombe, Blackb. 
speculifer, Blackb. 
Aurantii, Blackb. 
ventralis, Er. 
satelles, Blackb. 
fasciculatus, Blackb. 
ornatipennis, Blackb. 
nigronotatus, Blackb. 
insipidus, Blackb. 
cyaneus, Blackb. 
eceruleus, Blackb. 
leeticulus, Blackb. 
apicalis, Blackb. 
ERITHIONYX (gen. nov.). 
Khizobio affinis differt oculis minus fortiter granulatis unguicu- 
lisque anterioribus 4 bifidis posticis appendiculatis. 
