804 REVISION OF THE AMYCTERIDES, iv., 



SCLERORINUS RlVERINiE Macl. 



Macleay, loc, cit., p. 246; S. alternus Macl., I.e., p. 247. 



^. Narrow, elongate. Black; densely clothed with dark brown 

 subsquamosity, vittate with lighter, varying from grey to silvery; 

 head trivittate, the median vitta light brown with a grey centre, 

 subdivided by a median, laevigate line, the two portions diverging 

 on rostrum; prothorax trivittate; elytra with lighter clothing 

 irregularly distributed along lateral margins, about declivity, and 

 forming a narrow line along suture; sides with greyish or silvery 

 clothing along, interstices; undersurface maculate with greyish- 

 yellow in the centre, and with grey at the sides of each segment; 

 legs rather densely clothed with white, irrorate with black spots. 



Head convex, separated from rostrum above by a slight, trans- 

 verse impression; median line Isevigate. Rostrum little excavate; 

 external ridges little raised, subparallel; median area elongately 

 triangular in shape, not depressed nor definitely carinate, sides 

 of area concealed by clothing of vitta; basal foveas shallow, in- 

 conspicuous, elongately triangular. Prothorax (3x3-5 mm.) 

 gently rounded on sides, not dilatate; apical margin rounded 

 above, with moderately distinct, ocular lobes; subapical impres- 

 sion distinct; median and sublateral vittse free from granules, 

 but not evidently impressed; elsewhere set with small, rounded, 

 discrete granules; sides also granulate. Elytra (8 x 4*5 mm.) 

 elongate, little widened on the sides; base almost truncate, 

 humeral angles marked by a small, outwardly projecting tubercle; 

 seriate punctures small, shallow, intrastrial granules incon- 

 spicuous; sutural interstice with a row of separate granules; 

 second and fourth with a few, distantly separated tubercles, not 

 extending to base or declivity, small but larger than on the 

 other interstices; third and fifth each with a continuous row of 

 small tubercles, rounded near the base, becoming larger, more 

 separate, and conical towards apex, extending down declivity; 

 sixth with a somewhat similar row, but with the tubercles rather 

 farther apart, and not extending to base. Sides with granules 

 obsolete. Undersurface with ventral segments flattened; fifth 

 feebly rugosely punctate. Anterior femora not ridged beneath; 

 tibiae and tarsi simple, 



