196 REVISION OF THE AUSTRALIAN CURCULIONID.i;, 



without scales, sutural interstice for about one-third its length 

 similar except that it slightly slopes to suture. Two basal seg- 

 ments of abdomen with large round punctures, the 1st with a 

 distinct but shallow depression in the middle, apical segment 

 densely punctate, intermediates flat, each with a transverse row 

 of punctures, posteriorly not marked with large scales. Length 

 4, rostrum 1^; width 2; variation in length 2|-4;^ mm. 



ffab. — W.A. : Swan River, Pinjarrah, Bunbury, &c. 



Of this species I have seen thousands of specimens at the bases 

 of the leaves of a common species of Xanthorrhop.a and of Kingia 

 australis. The sexes, apart from size (not, however, a reliable 

 feature), are scarcely distinguishable ; the male has a slightly 

 longer scape, and the rostrum is a little more scaly at the sides. 

 The punctures of the head are small compared with those of the 

 preceding species, and very much smaller than those of the follow- 

 ing. The shining rostrum, but particularly the sutural and 9th 

 interstices, are very distinctive. 



Decilaus foveiventris, n.sp. 



Upper surface glabrous except for a small spot of dirty grey 

 scales near the apex of each elytron. Under surface, legs, and 

 pectoral canal with rather sparse dingy brown setose scales. 



Head rather densely and strongly punctate between eyes, 

 punctures much smaller on vertex ; a feeble longitudinal 

 excavation between eyes, behind which is a feeble ridge. Ros- 

 trum moderately long, feebly incurved to middle, with dense 

 large punctures and a scarcely traceable median ridge. Scape 

 slightly shorter than funicle, inserted about two-fifths from apex 

 of rostrum. Prothorax moderately transverse, apex rounded; 

 densely and strongly punctate, punctures round and deep, larger 

 in middle of base than elsewhere. Elytra slightly wider than 

 prothorax, very slightly wider behind than at base ; striate- 

 punctate, punctures large, suboblong, open posteriorly and dimi- 

 nishing in size towards apex ; interstices slightly convex, wider 

 than punctures, densely, minutely and irregularly granulate. 

 Metasternum feebly depressed on each side. Two basal segments 



