76 Mr. C. O, Waterhouse's Monograph of the 



elongate puncture in front near tlie base, gently emarginate 

 at the apex, finely and closely punctured at the base, spar- 

 ingly punctured towards the apex; labruna rather elongate, 

 acuminate in front, distinctly and moderately thickly punc- 

 tured ; mandibles pitchy. Antennae two-thirds the length 

 of the elytra, moderately stout. Thorax with the areolets 

 well defined, the central posterior one black anteriorly, the 

 two lateral posterior areolets marked with black internally. 

 Elytra nearly parallel, each with four costse, the interstices 

 with regular double rows of fovese, the rows divided by a 

 fine but distinct costa. 



Hah. — E-ockhampton, Clarence River, &c. Brit. Mus. 



P. uniforme, sp. n. (PL I. figs. 28 — 31.) 



Nigrum; thorace, scutello, elytrisque ferrugineo-rufis; 

 rostro minus elongato, crebre subtiliter punctulato, sub- 

 opaco, apice emarginato; mandibulis piceis; thorace sep- 

 tem-areolato, lateribus sinuatis ; elytris quadricostatis, 

 subparallelis, interstitiis irregulariter biseriatim fove- 

 atis. $. 



Long. 4| lin. 



Rostrum scarcely more than half a line in length, thick 

 at the base, a little narrowed towards the apex, relatively 

 shorter than in the preceding species, but of the same 

 form, gently emarginate at the apex ; labrum transverse, 

 very slightly emarginate in front, and pubescent. Antennaa 

 two-thirds the length of the elytra ; 3rd joint slightly 

 pitchy along the upper edge, the lower anterior angle pro- 

 duced, the produced part very short and oblique to the 

 axis of the joint. Thorax strongly sinuate at the sides. 

 Elytra quadricostate, the interstices with irregular double 

 rows of fovese, the rows not divided by a distinct costa. 



Hab. — Port Bowen. Brit. Mus. 



P. irregiilare, sp. n. (PL I. figs. 18 — 18a.) 



Nigrum; antennis simplicibus; thorace rufo-flavo, 

 medio nigro; scutello nigro; elytris rufo-flavis, quadri- 

 costatis, interstitiis biseriatim punctatis. $ . 



Long. 3 lin. 



Rostrum a little longer than broad. Antennse simple, 

 not dentate, the third joint one-third longer than the follow- 

 ing, its upper margin pale, the joints scarcely obliquely 

 truncate at their apex ; the lower angle slightly less than 



