BY E. W. FERGUSON. 717 



gently emarginate, the humeral angles marked, not greatly pro- 

 duced ; seriate punctures small, moderately deep, somewhat 

 irregularly set, the intrastrial granules moderately distinct. 

 Interstices with small reddish tubercles, the basal ones slightly 

 elongate, the apical ones conical ; sutural interstice slightly 

 raised, not tuberculate; second interstice with about four, widely 

 spaced, from middle to near apex; third with a row of eight to 

 ten, widely spaced, rather closer together anteriorly, extending 

 from base nearly to apex; fourth without tubercles; fifth with a 

 more closely set row, extending from humeral angle down de- 

 clivity, thirteen on one side, and sixteen on the other in the 

 type; sixth with a similar row of about eleven. Sides with 

 tubercles subobsolete. Moderately closely setigero-punctate 

 beneath; basal segments flattened in the middle; fifth with a 

 moderately deep median channel, not reaching apex, bordered, 

 on either side, by a small tubercle, situated posteriorly to middle. 

 Anterior femora not ridged beneath; intermediate tibiae with a 

 strong subapical notch. Anterior tarsi with third joint spongiose 

 beneath, broader than first joint, the inner half broader than the 

 outer; other tarsi not spongiose. 



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

 bluntly acuminate; undersurface convex, fifth segment feebly, 

 longitudinally impressed; tibiae much more feebly notched, tarsi 

 simple. Dimensions : (^, 16 x 5'5; 9, 17 x 6*5 mm. 



JJab.— Western Australia, Bridgetown (H. J. Carter). Type 

 in Coll. Ferguson. 



Closely allied to S. neghctus, this species may be distinguished 

 by the smaller, more reddish elytral tubercles, and by the more 

 distinct intrastrial granules. The asymmetry of the third 

 anterior tarsal joint, though distinct, is less evident, in this sub- 

 group, than in S. tristis and its allies. S. Carteri is the first 

 species of Section i. to be described from the far west of the 

 continent. 



Other species belonging to Group i. 



Under this and similar headings in each group, I propose to 

 list those species recently described, of which recognisable de- 



