BY THE REV. T. BLACKBURN, 555 



to llf ) narrower than the latter segment whereas in P. tubercu- 

 latus the greatest width of the elytra seems to be exactly the same 

 as of the prothorax ; (b) the elytra are very differently sculptured, 

 — those of P. tuberculatus each bear 4 well defined rows of large 

 flat feebly raised tubercles, inside which is a less defined row 

 along the suture and outside which are two fairly defined rows of 

 smaller tubercles, while a few minute granules are irregularly 

 scattered here and there among the interspaces of the tubercles ; 

 the elytra of Duhoulayi bear a great number of small tubercles (or 

 rather large granules the largest of which are much smaller than 

 the large tubercles of P. fubercidatus) which are scattered irregu- 

 larly over the surface, and of these a few stand out here and there 

 as evidently larger than the others, — these larger granules (or 

 small tubercles) having a tendency to run into irregular interrupted 

 longitudinal rows two of which are fairly well defined and more 

 conspicuous than the rest ; (c) the 3rd tooth on the front tibiae 

 (counting upwards from the apex) is as small as the minute 

 denticulation that is placed in P. htberculatus higher up than the 

 similar {i.e. 3rd) tooth. 



N. Queensland ; presented to me by F. Duboulay, Esq. 



Stenolophus CiERULEUS, sp.nov. 



Oblongus ; niger, elytris Isete cseruleo-iridescentibus, antennis 

 (parte apicali obscuriori excepta) palpis pedibus et marginibus 

 lateralibus testaceis, sutura rufescenii ; capite sat brevi, con- 

 vexo, postice sequali, inter antennas linea subtili transversa 

 angulata impresso ; prothorace elytris minus angustiori, sat 

 transverso, subquadrato, trans partem basalem subfortiter 

 punctulato, canaliculato, canali antice et postice fortiter 

 abbreviato, lateribus leviter rotundatis, angulis anticis obtusis, 

 posticis rotundatis ; elytris subtilius striatis, stria abbreviata 

 prope scutellum sat elongata, interstitiis sat planis postice 

 elevatioribus, 3° apicem versus puncturam singulam ferentL 



[Long. 2 1, lat. 1 line (vix.) 



With the facies of Harjmlus this pretty little species combines 



the bisetose penultimate joint of labial palpi and bilobed 4th tarsal 



