796 REVISION OP THE AMYCTERIDES, iv., 



along lateral margin; sides broadly vittate along lower edge with 

 white; median ventral vitta golden-brown. 



Head with a rather broad ridge on either side of upper surface, 

 continuous with external, rostral ridges; median line of forehead 

 laevigate, hardly carinate. Rostrum short, little excavate, the 

 external ridges subparallel; median carina narrow, but prominent; 

 sublateral sulci broad, shallow, with a deeper fovea at base. Pro- 

 thorax (5 "5 X 6*5 mm.) widely dilatate, subangulate on sides, 

 roughly hexagonal in shape, widest slightly in front of middle; 

 ocular lobes not prominent; disc with a distinct, subapical impres- 

 sion, most evident near sides, mesial line not impressed; set with 

 rather small, round, discrete granules, absent along vittae; sides 

 without granules, except above. Elytra (14x7 mm.) elongate, 

 little widened posteriorly; base evenly emarginate, humeral angles 

 tuberculiform; seriate punctures small, shallow, attendant granules 

 small and inconspicuous; interstices three and six with a con- 

 tinuous row of closely-set, conical tubercles extending from base 

 (in sixth, not quite reaching base) to half-way down declivity, 

 the third interstices slightly approximated on declivity; second 

 interstice with one or two isolated tubercles, or without any; 

 fourth with none; fifth with two conjoined tubercles at base, 

 forming the humeral tubercle. Sides with upper interstice 

 nodulose, the other interstices without tubercles or granules. 

 Undersurface with a longitudinal furrow on either side of median 

 vitta at base; fifth segment slightly rugulose on either side of 

 ventral vitta. Anterior femora with a ridge on outer half of 

 undersurface; tibiae not notched. 



^. Differs from the male in its ovate form, and in its strongly 

 convex, ventral surface, with feebler, ventral vitta; the fifth seg- 

 ment bears a shallow, median impression at apex. 



Dimensions: ^, 20 X 7; $,19x7 mm. 



}£(ib. — S.A.: Yorke Peninsula. Type in Macleay Museum. 



Described from specimens in my own collection. With the 

 exception of -S^. Blackbunii, which has larger prothoracic and 

 elybral tubercles, I know oh' no species with which the present 

 one could be confused. Though Macleay placed this species 



