241 
O. ovalis, sp. nov. Late ovalis; sat convexus; subtiliter sat 
crebre punctulatus ; supra splendide viridis, subtus cum 
pedibus (tarsis abdomineque rufescentibus exceptis) niger, 
antennis palpisque rufis; prothorace sat eequaliter punctu- 
lato ; elytris ad latera anguste deplanatis ; clypeo ad latera 
fortiter laminato : 3 mec prosterni lateribus nec epipleuris 
foveolatis. Long., 1 41; lat., 22 1. 
Var. supra cyaneus. 
A very distinct species, well characterised by its brilliant 
metallic upper surface and black under surface (except the reddish 
abdomen) and legs (except the tarsi), It is a little more elongate 
than its congeners, and is also remarkable for the sides of its 
. prothorax being punctured very little more strongly than the 
disc. The basal line of the prothorax is distinct from, but very 
near to, the hind margin. 
N. Queensland ; sent by Mr. Masters. 
O. Australasie, Boisd., var.? obscurus. Differt statura multo 
minore, colore nigro (maculis minoribus obscure ferrugineis). 
tions, 12 Le data) HGvax). 
I have seen several examples of this insect, all from Yilgarn, 
W. Australia, and all quite identical—and can hardly persuade 
myself that they are a mere variety, although I cannot find any 
difference from the type except in respect of size, colour, and 
markings. The spots on the elytra are placed as in Australasia, 
but are “quite small, and of a neo dark ferruginous tint, so as to 
be very inconspicuous. 
W. Australia; sent by C. French, Esq. 
GYMNOSCYMNUS, gen. nov. Coccinellidarum. 
Corpus fere glabrum, prothorace setis brevibus minus conspicuis 
sat sparsim vestito; oculi minus subtiliter granulati fere 
paralleli; clypeus antice truncatus; antenne ad _ basin 
aperte, quam Scymnz paulo longiores, *11-articulatee ; pro- 
sternum breve in medio sat ezqualiter convexum ; lamelle 
abdominales segmenti basalis apicem attingentes, hujus cum 
margine postice confuse: elytrorum epipleure subhorizontales 
intesre, haud foveolatee ; unguiculi appendiculati; sutura 
ventrali inter segmenta pasale et secundum sat fortiter 
impressa. 
The minute species for which I propose this new generic name 
is scarcely pubescent ; the elytra appear to be absolutely glabrous, 
* IT have not been able to break off an antenna for microscopic examina- 
tion, as I possess only a single example, but I feel satisfied that there are 
1] joints in the antenne; I can count 10 very distinctly, and am nearly 
certain there is another that would be distinct under a microscope. 
