460 Mr. A. M. Lea on 



white or whitish. On the upper surface the white scales are 

 scattered singly on the head and rostrum, condensed into a 

 feeble line on each side of prothorax, form a distinct spot 

 on each side of scutellum, and some very feeble ones else- 

 where. The shoulders are rather strongly rounded, so that, 

 although the elytra at their widest are distinctly wider than 

 the prothorax, their outlines appear to be almost continuous 

 with those of that segment. The lower surface of each of 

 the four front tibise appears to have three distinct equal- 

 sized teeth : one in middle, one near and one at apex, but 

 the latter one is the terminal hook. 



Haplonyx [Aolles) variegatus, Lea. Blue Mountains. 

 Sigastus casuai-inee, Lea. Sydney. 



Cryptorhynchides. 

 Diethusa tuberculata, sp. u. 



S . Reddish castaneous. Clothed with white, ochreous, 

 and sooty scales. 



Rostrum moderately long, paralled-sided, with dense, 

 clearly defined punctures in front of antennae ; behind same 

 coarser, sublineate in arrangement, but concealed towards 

 base ; with a narrow median carina. Scape inserted about 

 two-fifths from apex of rostrum, and distinctly shorter than 

 funicle ; first joint of funicle stouter and longer than second. 

 Prothorax moderately transverse, and punctures normally 

 almost concealed. Elytra subcordate, base strongly tri- 

 sinuate, with rows of suboblong, partially concealed punc- 

 tures, interstices nowhere ridged. Abdomen with basal 

 segment somewhat flattened, but the middle of its apex with 

 a narrow but distinct tubercle; apical segment with a large 

 shallow depression. Femora stout,^ rather lightly dentate; 

 front tibiae subfalcate, lower surface somewhat grooved, 

 apical hook unusually strong. 



Length 2^-3 mm. 



$ . Diflers in having the clothing less variegated, rostrum 

 somewhat thinner and with smaller punctures, abdomen 

 with basal segment convex and non-tuberculate, the apical 

 segment evenly convex, front tibiae not falcate, and the 

 apical hook small. 



Hab. New South Wales : Sydney (G. E. Bryant and 

 E. W. Ferguson). 



The male has the front tibiae somewhat as in Melanterius 

 coiigruus, but is readily distinguished from that species, and 



