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front tibiæ (I have not seen any litigiosus, in а long series, 
which has on both tibiæ more thar two teeth; two is un- 
doubtedly its normal number), by the much less prominence 
of the subapical calli of its elytra (these in litigiosus both 
are more prominent in themselves and also bear on the third 
systematic series a conspicuous tubercle scarcely smaller thaa 
the largest tubercle of that series), and by the distinctly red 
club of its antenne; from strzeleckensis, Blackb., by the 
largest and most nitid elytral tubercles being on (not the 
second, fourth, etc., but) the first, third, etc., systematic 
series: and from mentitor Blackb., by the much larger and 
much less numerous tubercles of its elytra. T. euclensis, 
Blackb., and vitreomaculatus, Macl., hardly need to be dif- 
ferentiated, the former having inter alia multa nearly all 
its elytral tubercles almost entirely opaque, and the latter 
inter alia multa being one of the smallest Australian species 
of the genus. 
South-east parts of Western Australia. 
T. mentitor, Blackb. This species is closely allsed to 1: 
euclensis, Blackb., and difficult to separate by characters that 
lend themelves to tabulation. The character that I have 
selected for tabulation is very satisfactory if constant, but as 
mentitor continues unique I hesitate to place entire reliance 
upon it, though I find the bifidity of the apical dilatation of 
the front tibie constant in euclensis (of which I have ex- 
amined many specimens). T. mentitor is a species of more 
parallel form than euciensis, and the tubercles of its elytral 
Series are smaller and much more numerous and closely 
placed than the corresponding tubercles in euclensis, while 
the small granules of the interstices between the systematic 
geries run (not in sinuous lines as they do in euclensis, but) 
in perfectly straight lines. 
T. tricolor, sp. nov. Alatus; sat late ovalis; sat opacus; 
niger vel piceo-niger, palpis antennisque rufis; supra in 
elytris (areis numerosis nitidis aterrimis exceptis) pube 
subtilissima creberrima brunnea et setis brunneis cine- 
reisque minus perspicuis (his in tuberculis subobsoletis 
fasciculatis) vestitus; subtus partibus nonnullis rufo- 
hirtis vel ciliatis; capite sparsim granulato-punctulato, 
fronte bituberculata ; prothorace antice angustato, quam 
longiori ut 13 ad 9 latiori, supra ut caput granulato- 
punctulato (puncturis minute setiferis), fere ut T. tas- 
manici, Blackb., carinato sed carinis perobtusis, ante 
lobum basalem medianum haud abrupte declivi, mar- 
gine laterali pone medium profunde emarginato, angu- 
lis anticis subacutis posticis subrectis, basi fortiter tri- 
sinuata, lobo basali postice angulato: scutello cordi- 
