40 
those which have been named have not been treated of 
systematically or collectively. The following is an attempt at a 
systematic treatment of the tribe. I have no doubt that errors 
will be found in my work, and I do not think it possible to issue 
such a work as I am attempting without running the risk of 
error, as many of the existing descriptions are of such a nature 
that the identification of the species they refer to is most difficult, 
and even the apportionment of the species to genera is in some 
cases almost a matter of guess-work. M. Lacordaire divides the 
tribe into the “ sub-tribes” Halticides and G'alerucides according 
as the hind femora are or are not dilated giving the insects 
saltatorial faculties. 
Geo Tribe) HALTICIDES. 
Of this sub-tribe 78 species have been described and they are 
distributed among 19 genera. Two of these—VHaltica splendida, 
Oliv., and /7/. smaragdula, Oliv.—are not intelligibly characterised 
and it is not possible to refer them to any genus with confidence. 
In Mr. Masters’ Catalogue the former stands as a true Haltica 
(possibly correctly), the latter as an Arsipoda, but the description 
of the latter characterises the basal joint of its hind tarsi as 
“‘ valde elongatus” which is inconsistent with a place in Arsipoda ; 
I can offer no suggestion as to what it really is. It is quite 
possible that some of my generic determinations may not stand 
—e.g:, I think it probable that Arsipoda will be sub-divided 
eventually and I doubt the Austra:ian Crepidodere remaining in 
permanent association with the European species of that genus. 
Under these circumstances it seems necessary to preface my work 
with a tabulated statement of generic characters which will 
enable the student to determine without hesitation to what genus 
I refer the inseets treated of in this memoir. I regret that I am 
unable to place the genus Platycepha in the tabulation ; unfortu- 
nately however its author has not stated whether its antenne are 
approximate at the base; if they are not approximate (but in 
that case surely the author, Dr. Baly, could not have overlooked 
the character) Platycepha must be extremely close to Amphimela ; 
if they ave approximate the genus seems to be near Arsipoda 
structurally (judged by Dr. Baly’s diagnosis) but to differ inter 
alia by its hind tibiz being strongly dentate. In the following 
pages I characterise three new genera and 56 new species of 
Halticides, besides recording as Australian four genera not 
previously attributed to Australia. 
A. Front coxal cavities closed. 
B. Apical joint of hind tarsi not panes dilated. 
C. Claws bifid . .... Podontia. 
CC. Claws appendiculate. 
D. Antenne very widely separated at the base .... Amphimela. 
DD. Antenne not abnormally separated at the base. 
