NEW SPECIES OF AUSTRALIAN TIN GIT ID /E {REMITTEE A). 
331 
Head including eyes, antennal segment IV, tarsi, mesosternum, and abdomen, 
black ; pronotal disc, castaneous, with a darker, nitid, transverse fascia anteriorly ; 
antennae excepting segment IV, head spines, pronotal carina, legs, reticulations 
on the elytra, and posterior angle of pronotum, flavous ; elytral membrane hyaline, 
iridescent ; paranota, anterior margin of collum, and the rostral sulcus, white ; 
bucculse brownish. Length 3 mm. ; breadth 1 mm. 
Holotype . — Samsonvale, Q., April (H. Hacker). He, 3369, 
Paratypes . — Same data, and August, September ; Bribie Island, January 
(H. Hacker). 
Radinacantha tasmanica n. sp. 
(Plate XXXIV, figure 12.) 
Head somewhat globular above, armed with five spines which do not extend 
outw r ards beyond the sides of head ; the pronotal carina is less elevated than in 
R. reticulata , and the paranota are obsolete, represented by a short linear carina 
anteriorly ; the tibiae are apically blackish, and the head spines are basally black ; 
in other characters and in size, this species is similar to the preceding one. 
Holotype. — Strahan, Tasmania (Lea and Carter). In South Australian 
Museum. 
Paratype . — Same data. He. 3370. 
Leptobyrsa magnifica n. sp. 
(Plate XXXV, figure 13.) 
Head smooth, armed with five long slender spines ; two basally at the sides 
sub-parallel ; three in front converging between the antennae and projecting slightly 
beyond the first segment ; antennae moderately long, clothed with rather long fine 
hairs ; segment I cylindrical, twice as long as the second ; III slightly more than 
twice the length of the fourth ; IV slender, longer than the first and second segments 
conjoined ; the rostrum extends to the posterior coxae. Pronotmn finely punctured, 
tricarinate, the median carina is arcuately elevated, with a row of very large 
transverse areolae ; vesicle high, longer than wide, with large reticulations ; from 
side view the anterior margin is straight, inclining obliquely over the head ; the 
top of the vesicle is strongly arcuate ; posterior angle short, broadly rounded behind, 
leaving a triangular area exposed between the elytra ; paranota very broad and 
furnished with a row of small marginal spines ; the anterior margin is sinuate and 
roundly produced beyond the head : the sides are convexly curved and extend to 
behind the lateral angles : they contain five irregular rows of areolae w hich increase 
in size towards the outer margin. Elytra very broad and furnished with a row of 
small marginal spines ; the areolae are large, convex, and iridescent ; tumid 
elevation well developed ; the discoidal area is wide, convex on the outer side and 
centrally depressed towards the inner side ; the costal area is strongly sinuate. 
General colour pale fiavous ; head and pronotum, testaceous brown, the 
punctures slightly darker ; a spot in the centre of discoidal areas and at the base 
of sutural area ; a suffusion on the elytra posteriorly, following the costal area, 
becoming wider apically, fuscous ; the reticulations over these spots are blackish ; 
eyes and abdomen, black ; legs, head spines, and the antennae, pale flavous, excepting 
the apical third of segment IV, which is fuscous. Length 4 mm. ; breadth 3 mm. 
