708 REVISION OF THE AMYCTERIDES, iv., 



punctures small, shallow, the intrastrial granules distinct, the 

 whole confused and somewhat asperate; interstices with small, 

 orranuliform tubercles ; second interstice with a few, small, 

 isolated tubercles, little conspicuous, not extending to base, one 

 or two present on the declivity; third interstice raised, in type, 

 basal half costiform, with small, elongate, subobsolete granules, 

 set in an irregular, double series, apical portion with more 

 isolated, single tubercles; fourth with small, isolated, granuliform 

 tubercles, hardly distinct from the intrastrial granules; fifth 

 somewhat raised, with a single row of closely-set, rounded, gran- 

 uliform tubercles; sixth with a similar row, not reaching base; 

 sides with tubercles almost obliterated, separated by impressions, 

 giving sides a rather feeble, vertically-rugulose appearance. 

 Undersurface gently concave over metasternum and basal seg- 

 ment; fifth segment with a rather narrow, deep, median channel, 

 leading into a transverse apical depression, the median channel 

 bordered on either side by a small tubercle. Anterior femora not 

 ridged beneath; tibiae not notched; anterior tarsi symmetrical. 



5. More ovate, more produced at apex, each elytron separately 

 mucronate ; undersurface convex, fifth segment with apical 

 margin not strongly bisinuate, with a median linear impression. 

 Dimensions: (J, 16 x 6 mm.; 9, 15 X 65 mm. 



Hah. — Victoria, Nelson (Blackburn). Type in South Aus- 

 tralian Museum. 



In general appearance, this species resembles more the tristis- 

 than the Adelaid(E-^OYt\on of the group; to the latter, however, 

 the simple tarsi will ally it. From most of its immediate allies, 

 the small granuliform tubercles will separate it. The species 

 doubtfully identified as S. obliteratus, from Mt. Buffalo, agrees 

 with the present species in the small, granuliform tubercles; but 

 there are numerous small differences, among others, the intra- 

 strial granules are less distinct; the females also are very different. 



In the type, the tubercles at the base of the third interstice 

 are more or less coalescent, forming a costa; in other examples, 

 however, the tubercles are more distinct, and this portion of the 

 interstice could not be termed costiform. 



