80 Mr. C. O. Waterhouse's Monograph of the 



distinct costse ; the interstices witli two rows of large 

 irregular pimctures, the rows not divided by a distinct 

 costa ; the apices are red. 



Hab. — Van Diemen's Land. Brit. Mus. 



This species resembles P. scalaris, but is much longer 

 and narrower, and the rows of punctures on the interstices 

 of the elytra are much more regular. 



P. plagiatum, sp. n. (PI. II. figs. 65 — 68.) 



Atrum ; elytris raarginibus apiceque rubris ; rostro 

 latitudine breviori, utrinque impresso ; antennis bene 

 dentatis. $. 



Long. 4| lin. 



Rostrum very short, shorter than broad, compressed in 

 front, with a deep impression in front of the eye. Elytra 

 deep red, Avith a black patch extending from the scutellum 

 to the posterior two-thirds, somewhat in the form of an A; 

 quadricostate ; the interstices with two rows of punctures, 

 not separated distinctly by a carina. 



Hob. — E. Australia. Brit. Mus. 



P. luguhre, sp. n. (PL II. figs. 69—72.) 



Atrum ; rostro nullo, clypeo leviter emarginato ; ely- 

 tris postice paulo ampliatis, quadricostatis, interstitiis 

 biseriatim foveolatis, su.tura marginibusque tenuiter ferru- 

 gineis. $ . 



Long. 5 lin. 



Dull black above ; rostrum none : elytra with the suture 

 and the entire margins narrowly bordered with rusty 

 yellow. 



Hah. — Australia. Brit. Mus. 



P. cinctvm, sp. n. (PI. II. figs. 73 — 77.) 



Nigrum ; thorace rufo, medio nigro, ruguloso, vix 

 septem-areolato, areola discoidali solum bene determinata ; 

 scutello rufo ; elytris rufis, apice nigris, novem-costatis, 

 costis alternis minus elevatis, interstitiis regulariter uni- 

 seriatim fortiter punctatis. ^ , ? . 



Long. 4 lin. 



The antennje of the male are very strongly dentate. 

 The mandibles are reddish. The thorax is divided into 

 seven areolets, but the lines dividing them are very in- 



