BY REV. T. BLACKBURN. 189' 



coalescing for the greater part of their length. The irregularity of 

 the elytral puncturation does not consist in the size of the 

 punctures but in their being placed almost exclusively on the 

 infuscate parts of the surface and in their seriate arrangement 

 being here and there considerably confused. 

 Central Australia; Basin of Lake Eyre. 



P. TARSALIS, Sp.nOV. 



(J. Sat late ovalis; modice convexa, altitudine majori (a latere 

 visa) ante elytrorum marginem medium posita; nitida; nigra, 

 antennis (his apice infuscatis) labro mandibulis prosterno 

 medio coxis capiteque subtus testaceis, tarsis rufis ; capite 

 crebrius dupliciter (subtiliter et subgrosse) punctulato; pro- 

 thorace quam longiori duplo latiori, pone apicem baud 

 impresso, ab apice fere ad basin leviter dilatato subfortiter 

 minus crebre (antice magis crelire, ad latera grosse) punctu- 

 lato, lateribus minus arcuatis baud deplanatis, angulis posticis 

 obtusis sat bene determinatis ; scutello Itevi ; elytris sub 

 callum humeraleni vix depressis, pone basin baud impressis, 

 sat fortiter subseriatim punctulatis, parte marginali a disca 

 vix distincta, calli humeralis margine interno a sutura quam 

 ab elytrorum margine lateral! paullo magis distanti. Long. 



2, lat. 1/^ lines. 



A very distinct species on account of its entirely black upper 



surface, which is probably constant. 



Victoria. 



P. M-FUSCUM, Bohem. 



This is a variable species in respect of its colouring, the upper 

 surface being of various shades from whitish-yellow to reddish- 

 brown or even dark lirown (the latter colour being probably the 

 result of long immersion in spirits), and the underside, femora, and 

 antennae being more or less infuscate or even blackish in parts. 

 It evidently forms a connecting link between the present and the 

 next group of species, having all the facies of the next group, but 

 with the puncturation of its elytra very irregular and, so far as it 

 is seriate, consisting of ten double rows of punctures. 



