BY E. W. FERCxUSON. 709 



The female is very similar in appearance to S. acuminatus, 

 having a similar, apical, ventral segment; the elytra, however, 

 are moregranulose, and the males are certainly distinct, provided 

 I am right in regarding *S'. acuminatus as the female of *S'. 

 sordidus. 



SCLERORINUS TRISTIS Boisd . 



Amycterus tristis Boisd., Voy. de I'Astrolabe, ii., 1835, p. 388, 

 t.7, f.l2; ^S". tristis MacL, loc. cit., p.259; S. Howitti Msic\., loc. cit, 

 p. 257: -S'. asper MacL, loc. cit., p. 254; Lea, Trans. Roy. Soc. S. 

 Aust., 1903, p.ll2. 



(J. Elongate, subparallel. Black; more or less densely clothed 

 with brownish pubescence, prothorax more or less evidently 

 trivittate with grey, ventral segments feebly maculate in middle. 



Head and rostrum in the same plane above; lateral ridges 

 traceable, but hardly raised, along head; median line Isevigate, 

 but not carinate. Rostrum little excavate; external ridges par- 

 allel; median carina narrow, strongly raised, separated from 

 head by a punctiform depression; sublateral sulci shallow, deeper 

 at base, moderately broad. Scape rather short, moderately 

 strongly incrassate. Prothorax (4 x 5 mm. ) rather widely dilatate, 

 strongly rounded on the sides; apical margin sinuate above, 

 ocular lobes strong; subapical transverse impression, and median 

 impressed line moderately distinct; set with obsolescent, elongate 

 granules, frequently confluent to form irregular ridges, setigerous, 

 the setse arising from the posterior end, granules most distinct 

 towards the middle, almost completely obsolete laterally; sides 

 with a few obsolete, rounded, granules above. Elytra(9*5 x 5mm.] 

 little widened on the sides; base gently emarginate, humeri not 

 produced, subrectangular. Disc with sculpture much confused, 

 the punctures moderately distinct, but irregularly arranged, the 

 intervening ridges moderately prominent, often confluent across 

 the interstices; interstices not raised, tuberculate; tubercles low, 

 elongate towards the base, more raised, and more rounded, pos- 

 teriorly, but hardly subconical, generally more or less separated, 

 sometimes confluent at base of third or fifth interstices; fifth 

 interstice generally with tubercles separated, sometimes forming 



