193 



ILah. — Western Australia: Cue (li. W. Brown). Type, 

 I. 1544. 



In some respects, notably of the rostrum, close to silacea 

 and Ina^qiiaJis, but clothing of prothorax conspicuously dif- 

 ferent to that on most of the elytra. On the prothorax, under- 

 surface, and legs the scales are mostly white, but in places 

 they are more or less feebly stained with ochreous. On the 

 apical half of elytra the scales are more or less pale-ochreous, 

 becoming paler at the tip, but on the basal half they are but 

 little different in colour to the derm on which they rest; 

 the shades of colour, however, gradually run into one another. 

 On the scutellum they are of a snowy- whiten ess. The (four) 

 typical specimens are apparently all females. 



DiETHUSA NODIPENNIS, n. sp. 



Reddish-castaneous; in parts stained with black. Densely 

 clothed with stramineous, or light-ochreous, scales, in places 

 somewhat darker. 



Head with concealed punctures. Rostrum moderately 

 long, parallel-sided between base and antennas (which are 

 inserted in almost exact middle), and then strongly narrowed 

 to apex; basal half with partially-concealed punctures and a 

 median carina, elsewhere with small punctures. Scape 

 slightly more than half the length of funicle and club com- 

 bined. Protliorax small, moderately transverse, rather 

 strongly and somewdiat unevenly convex; punctures concealed. 

 Elytra briefly subcordate, much wider than prothorax; with 

 rows of almost concealed punctures, in distinct striae, the 

 latter often deflected by tubercles ; interstices with numerous 

 tubercles of various sizes. Under-surface with dense, con- 

 cealed punctures. Basal segment of ah d omen convex, as long 

 as three following combined. Femora stout, edentate. 

 Length, 3| mm. 



Hah. — Western Australia: Beverley (F. H. du Boulay). 

 Type, I. 1545. 



The multituberculate elytra and edentate femora render 

 this one of the most distinct species of the allied genera. Its 

 nearest ally is probably the Queensland sulfurea. In size, and 

 to a certain extent in clothing, it resembles Neolyhceha 

 rem of a, but the rostrum, elytra, femora, etc., are very dif- 

 ferent ; the tip of the rostrum and most of the sternal sutures 

 are black. The tubercles are nearly all on the odd interstices, 

 including the sutural one; the largest are on the third and 

 fifth; on the basal half there are but few, but those of rather 

 large size, but on the apical half they are numerous. The 

 striae, especially the second to fifth, are frequentl}^ deflected 



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