7 
antenne are 11-jointed ; its mesosternum is normal ; all its tibie 
are mucronate ; and the claw joint of its hind tarsi is normal. 
These are the structural characters of Xwthea and I cannot find 
that they have been attributed to any subsequently named genus. 
It is likely enough that a comparison of types might render it 
desirable to separate the insect described below from Xwthea but 
meanwhile I think it should be provisionally referred to that 
genus. It evidenly bears much specific resemblance to the type 
of Xuthea, though it is considerably smaller. 
X? formosa, sp. nov.  KElongato-ovalis; nitida; tota leete 
cerulea, antennis obscuris basin versus vix rufescentibus 
exceptis ; capite levi, inter oculos transversim arcuatim 
sulcato ; oculis grosse granulatis; antennis quam corporis 
dimidium vix longioribus, apicem versus gradatim manifeste 
incrassatis, articulo 1° parum elongato, 2° quam 1” sat 
breviori, 3° 1° longitudine equali, 4° quam 3" paullo breviori, 
5° 3° longitudine zequali et paullo magis robusto ; prothorace 
sublevi, antice angustato, ante basin profunde transversim 
sulcato (sulco transverso utrinque in sulco profundo longit- 
udinali terminato); elytris subtiliter minus regulariter 
seriatim punctulatis, nullo modo striatis; coxis anticis 
apertis, tibiis omnibus breviter mucronatis tarsorum postic- 
orum articulo basali sequentibus 2 longitudine equali. Long., 
El sdat. oS |. (vix): 
Its brilliant metallic blue color (almost as bright on the under- 
surface and the legs as on the elytra) renders this a very beauti- 
ful little insect. The color of the legs underlying their blue 
iridescence is of a somewhat pitchy testaceous tone. The basal 
joint of the antennz is somewhat shorter than in most Halticides. 
The mucro at the apex of the anterior 4 tibize is placed among 
coarse setve and needs looking for. 
N. Queensland ; taken by Mr. Koebele, near Cairns. 
SPH RODERMA. 
S. baldiensis, sp. nov. Late ovalis ; nitida ; rufo testacea, antenn- 
arum articulis ultimis 5 obscuris; capite transversim pro- 
funde arcuatim sulcato (sulco pone oculos, ut S. testacee, 
Fab., continuo), in vertice punctulato et longitadinaliter 
striatim rugulcso; antennis quam corporis dimidium 
brevioribus, articulis ultimis 5 gradatim incrassatis, articulo 
1° modico, 2° minus brevi (quam 1" fere duplo breviori), 3” 
quam 2" graciliori sed vix longiori, 4° 6° inter se sat cequali- 
bus (quam 3" subbrevioribus) ; prothorace transverso, 
transversim convexo, subfortiter sat sparsim punctulato ; 
elytris sparsim sat fortiter (quam S. festacee, F., magis 
sparsim vix magis fortiter) punctulatis ; femoribus posticis 
modicis: Longest lslat:, 2 1. 
5 
