315 
the Macleay Museum. They have eight-jointed antennae. 
This insect is, I have no doubt, the female of ri/bicundits, 
Macl. 
SIXTEENTH GROUP (aA, B, C, DD, OF TABULATION). 
This group includes the species having eight-jointed an- 
tennae, front tibiae tridentate externally, and pronotum with- 
out vestiture (unless along the lateral margins). The folio 9»- 
ing notes are on species appertaining to it : — 
L. fallax, Blackb. This species is well distinguished from 
atriceps, Macl., by the hind angles of its prothorax being dis- 
tinctly defined. It also differs in colouring, its pronotum being 
uniformly testaceous brown, while that of atriceps presents 
the unusual character of being bicolorous (its front part 
black). Its pronotum, moreover, is notably less convex longi- 
tudinally, that of atriceps being exceptionally declivous im- 
mediately in front of the base. Also, the general dorsal 
sculpture of fallax is considerably finer and feebler than of 
atriceps. The sexual characters in both species seem to be 
slight, consisting in little more than an increased robustness 
of the front tarsi in the male. 
L. hadius, Macl., is referred by its author to a section 
of Liparetrus, to which he attributes nine-jointed antennae ; 
the antennae nevertheless nave only eight joints. I have ex- 
amined the presumable type in the Macleay Museum. The 
clypeus of that specimen is distinctly bisinuate (or obsoletely 
tridentate) on its front margin, although that character is 
not mentioned in the description. I have examples before me 
of a Liparetrus from Beverley, W.A., which I hesitate to re- 
gard as specifically distinct from hadius; nevertheless the 
front margin of its clypeus is more decidedly tridentate, its 
colour notably paler testaceous, and the puncturation of its 
elytra certainly finer and less close than in hadnis. 
L. monticola, Macl. (? Fab.). In the Macleay Museum 
two very much broken specimens are pinned into the label 
bearing, ''monticola, Fab." They are examples of two dis- 
tinct species, one that which elsewhere in the same museum 
is labelled, "atriceps, Macl.," the other suioerficially resem- 
bling it, but different, inter alia, by the finer and sparser 
puncturation, and the well-defined hind angles of its pro- 
notum. The latter is probably that on which Macleay's des- 
cription is founded, as that description calls the pronotum 
"thinly punctate." I can give no opinion as to ^lacleay's 
leason for the identification with mouticcAa — which seems to 
me doubtful in the extreme ; out, as I am quite unable to 
identify monticola myself, I see no objection to allowing this 
species to stand as ''monticola, Macl. (? Fab.)" provisionally. 
