768 REVISION OF THE AMYCTERIDES, iv., 



ridges very feebly convergent towards base; median carina rather 

 broad, not greatly raised; sublateral sulci moderately broad, shal- 

 low, slighter deeper at base. Prothorax (5-5 x 6*5 mm.) moder- 

 ately dilatate on sides, subangulate slightly in front of middle; 

 ocular lobes rather feeble; subapical constriction present, not 

 deeply impressed ; disc convex, closely set with small, unisetigerous, 

 somewhat depressed granules; sides with granules obsolete, except 

 above. Elytra (13 x 7 mm.) very feebly rounded on the sides; 

 base gently emarginate, the humeral angles noduliform; seriate 

 punctures small, shallow, indefinite, intrastrial granules small, 

 hardly traceable, except by setae ; interstices rather strongly tuber- 

 culate, sutural with small granules not traceable beyond middle; 

 second interstice with three to five, moderately large tubercles, 

 separate, slightly elongate, not reaching base, nor extending 

 down declivity; third with a row of eleven or twelve separate 

 tubercles, extending from base almost to apex, strongly rounded 

 towards base, the last four or five more prominent and conical; 

 fourtli with two near the middle; fifth with a row of nine or ten, 

 separate tubercles, the last two or three conical; sixth with a row 

 of nine, more closely set. Sides with tubercles moderately large, 

 somewhat depressed, sometimes confluent vertically. Ventral seg- 

 ments longitudinally impressed on each side, the impressions 

 deeper on the fifth segment. Anterior femora ridged beneath; 

 legs simple. Dimensions: ^, 22 x7 mm. 



Hah. — Western Australia. Type in Coll. Ferguson. 



Three specimens are under examination, labelled "Whitlock, C. 

 French." I am uncertain whether Whitloek is the name of a 

 place, or of the collector from whom Mr. French received them. 



The species is closely allied to S. Elderi SI., of which it might 

 be more properly considered a subspecies. It may be distinguished 

 by its smaller, narrower form; and by the smaller, more depressed, 

 prothoracic granules. 



As in other species of this group, the number of tubercles on 

 each interstice is variable, even on the two sides of the same 

 specimen. The numbers given in the description are those of the 



