78 Mr. G. R. Waterhouse's Notes 



others being obtuse) ; it is situated rather behind the commence- 

 ment of the posterior third of the elytra ; there are no tubercles 

 behind this part. All the tubercles of the second row are nearly 

 equal, but the hindermost are a little more elevated, and some- 

 what acute. The outer row vanishes on the hinder half of the 

 elytra. The abdomen beneath is almost destitute of scales : the 

 segments present some very minute scattered punctures, besides 

 which, on the first and second segments, as well as on the post- 

 pectus, are numerous transverse rugae, but these are extremely 

 delicate. 



Acautholophus planicolUs. 



Ji. oblongus, niger, fusco-squamosus ; capite tuberculis minutis 

 postice instructo, rostro utrinque crista interrupta, oblique 

 elevata, instructo : thorace dorso depresso, tuberculis par- 

 vulis (vel granulis) irregularis adsperso, lateribus tubercu- 

 lato : elytris apice conjunctim rotundatis, dorso subdepressis, 

 punctato-striatis, intersticiis seriatim granulatis ; intersticiis 

 2 et 4 postice tuberculis parvulis conicis, parum elevatis, 

 tuberculisque duobus ad suturam ante apicem, instructis. 



Long. corp. rostr. incl. 8 lin. 



Patria, Nova Hollandia, ad " Adelaide." 



This species is closely allied to the preceding, but is readily 

 distinguished by the absence of the two rows of distinct tubercles 

 on the disc of the thorax, and the flatness of the dorsal surface, 

 and the small size of the tubercles on the sides of that segment, 

 together with the presence of a sutural tubercle at some little dis- 

 tance from the apex of the elytra. The crest on each side of the 

 rostrum is not produced into spines : it is, however, considerably 

 elevated, notched near the middle, and again between this point 

 and the front; the posterior half of the crest terminates behind in 

 an acute point, and is slightly recurved ; a transverse impression 

 separates the head from the rostrum, and there is a short longitu- 

 dinal groove at the base of the latter : on the back part of the 

 head are two small tubercles. The thorax is nearly flat above, 

 has a transverse impression towards the front, and another behind ; 

 besides which is a shallow depression, in which is a central ridge, 

 along the mesial line : there is a series of 3 or 4 smallish conical 

 tubercles on the lateral margin. The elytra are elongate-ovate, 

 the shoulders rounded, the sides sub-parallel in the middle portion. 

 The abdomen is tolerably well clothed with brown scales. The 

 minute scattered tubercles and granules on the thorax vary in 



