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



P. erythropteimm, Er. 



Very close to P. rufipennis, F., but separated on account 

 of the long cylindrical rostrum, flabellate antennse in the 

 male, &c. (PL I. figs. 1—5.) 



P. rufipenne, F. 



Generally rather smaller than the preceding species. 

 The form of the thorax varies very much. The length of 

 the rostrum appears also to vary, and the punctuation is 

 more distinct in some examples than in others. (PI. I. 

 figs. 6—9.) 



A single example from N.W. coast has the thorax very 

 broad, and the rostrum long and cylindrical and very 

 shining. I suppose it to be a mere variety. (PI. I. 

 figs. 10—12.) 



P. hrevirostre, sp. n. (PI. I. figs. 13 — 14.) 



Nigrum ; elytris rufis ; rostro latitudine vix longiore. ^ . 



Long. 6 lin. 



Separated fi'om P. rufipenne on account of the very 

 short rostrum, which is scarcely longer than broad, very 

 finely and thickly punctured. 



Hah. — N.W. Coast of Australia. Brit. Mus. 



P. laterale, Redt. sp. n. (PI. I. fig. 15—17.) 



Nigrum, opacum, thoracis lateribus elytrisque rufo- 

 flavis ; rostro cylindrico, nitido, basi subtilissime punctu- 

 lato ; antennis articulis 6 — 10 apice truncatis; thorace 

 baud profunde 7-areolato ; elytris quadricostatis, intei'- 

 stitiis irregulariter biseriatim foveatis. $ . 



Long. 4^ lin. 



Closely allied to P. erythropterum, Er. Rostrum very 

 long, cylindrical, a trifle narrowed before the base ; 3rd 

 joint of the antenna not quite as long as the two following 

 joints taken together ; the 4th and 5th obliquely truncate 

 (or slightly emarginate) at the apex: the 6th to 10th 

 truncate ; all the joints very compressed, simple and not 

 distinctly narrowed at their base. Thorax narrowed and 

 rounded in front, the sides regularly arcuate, the base 

 strongly bisinuate ; above divided by ridges into seven 

 areolets, the ridges dividing the lateral areolets very obso- 

 lete. Scutellum black, emarginate at the apex. Elytra 

 parallel, each with four costa?, the interstices with double 



