408 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



I am in some doubt as to the position of this species, but 

 owing to the oblique termination of the anterior tibiai and the 

 well marked striolas of the apical declivity of the elytra have 

 placed it in Tachys. It seems a thoroughly isolated species ; the 

 high-shouldered, parallel elytra are among its most conspicuous 

 features. The inner portion of the usual apical striole is very 

 distinctly marked, though it does not join the sutural stria ; 

 between this short stria and the marginal channel is another 

 short deep stria, on the apical declivity, which extends round the 

 apex and joins the sutural stria. The penultimate joints of the 

 maxillary palpi are greatly swollen ; the last joint is very small, 

 being a mere pi'ojecting spike. 



Tachys mitchelli, n.sp. 



Oval, robust, convex ; prothorax short, sides not sinuate 

 before base, posterior angles not prominent ; elytra wirlely oval, 

 striate-punctate, posterior declivity smooth. 



Testaceous (disc of elytra sometimes more or less infuscate), 

 legs pallid. Head convex, smooth ; front with two strong- 

 elongate narrow impressions converging in front, eyes convex, 

 prominent ; penultimate joint of maxillary palpi very thick and 

 inflated. Antennte moniliform, lightly incrassate. Prothorax 

 short, transverse, convex, smooth, about as wide (not narrower) 

 across base as across apex ; sides rounded in front, narrowed 

 behind, not sinuate before basal angles ; anterior angles widely 

 rounded, not marked ; posterior angles not prominent, acute at 

 summit ; base cvit obliquely to peduncle on each side behind 

 posterior angles, truncate across peduncle ; lateral border wide in 

 front, narrower towards posterior angles ; median line obsolete ; 

 a lightly marked transverse line across base near margin ; the 

 lateral fove;e of the base wide and weakly marked. Elytra 

 greatly wider than prothorax, convex, oval, truncate on base ; 

 shoulders rounded, not marked ; six rows of punctures on each 

 elytron (exclusive of marginal stria), sutural stria entire, simple 

 on posterior declivity, others successively shorter towards sides, 

 seventh wanting, eighth (marginal) punctate, the punctures inter- 



