Notefi on A my derides. 249 



Head and rostrum continuous aljove in profile; foreliead sli^ditly 

 depressed at base of rostrum; head and rostrum moderately closely 

 punctate, punctures distinct, rounded, nowhere confluent, coarse)- 

 and rather closer together on lostrum. Rostruin excavate, external 

 ridges subparallel; median area not raised, but with a narrow 

 median laevigata line; internal ridges ol)solete ; latcro-l)asal sulci 

 subtriangular, deep, foveiform. Prothorax (5.5 x 7 mm.) )-at]iei- 

 strongly ampliate, widest in front of middle; apical maigin with 

 post-ocular emargination but with lol^es indefinite ; subapical con- 

 striction indistinct. Rather closely set with moderately small rounded 

 granules, slightly larger along constriction, and very feebly trans- 

 verse in middle; sides granulate. Elytra (12 x 7 mm.) subparallel; 

 humeri strongly tuberculiform, outwardly projecting; base between 

 humeri gently concave, and with thickened basal border, absent in 

 middle; derm granulate-punctate between the tul)ei'cles, no definite 

 arrangement into striae. Tubercles strong, acutely conical pos- 

 teriorly, less prominent, somewhat elongate on the second and 

 third interstices at base; second with six, not extending down 

 declivity; third with eight, at intervals, from Ijase to apex, the last 

 two or three on declivity in line with second interstice; fourth 

 without tubercles; fifth with eight, at intervals, from base down 

 declivity; sixth with six, rather closer together, strongly conical 

 and outwardly directed ; lateral interstices nodulose. Ventral seg- 

 ments flattened ; basal segments finely strigose, suture between them 

 depressed; intermediate segments smooth, rugosely punctate at 

 sides, less so in middle; apical segment rugosely punctate, with a 

 feeble triangular depression at apex, slightly deeper along posterior 

 margin, depression with short, thick, setose hair. Anterior femora 

 with a feeble ridge beneath. 



? More ovate; convex beneatli; apical ventral segment with a 

 short transverse impression at apex. 



Dimensions : J" 20 x 7 mm. ; ? 18 x 7 mm. 



Hah. — West Australia, Swaii River, Darling Ranges. 



Type in A. M. Lea's collection. 



Closest to T . semispinosvs but considerably larger, more parallel, 

 with considerably stronger tuberculation of elytra. The prothoracic 

 granules are about the same size, but not (piite so depressed, and 

 the prothorax is notably larger and more transverse. The rostral 

 punctures — a fairly constant feature in this group — are similar. 



