290 THE GENERA AND SPECIES OF AMYCTERID^, 



siderably hollowed out between the crests, and is carinated for a 

 short distance in the middle. The thorax is flat and coarsely 

 granulated, with the medial line indistinct, and with five strong 

 pointed teeth on each lateral margin, of which the middle one is 

 the longest. The elytra are broader than the thorax, are of an 

 oblong oval shape, are mucronate at the apex, and are entirely 

 covered with granulations disposed in rows, these granules 

 becoming almost tubercles near the apex in the sutural, third, 

 and fifth rows. 



The only specimen I have seen of this insect is in my col- 

 lection, and is simply labelled " New South Wales." 



32. — AcANTHOLOPHUS PLANicOLLis. Waterh. 

 Trans. Ent. Soc. Lond., vol. III., 2nd ser., p. 78. 



" Oblongus niger fusco-squaraosus, capite tuberculis minutis 

 postice instructo, rostro utrinque crista interrupta oblique 

 elevata instructo, thorace dorso depresso tuberculis parvulis 

 (vel granulis) irregulai-ibus adsperso lateribus tuberculato, 

 elytris apice coujunctim rotundatis dorso subdepressis 

 punctato-striatis interstitiis seriatim granulatis : interstitiis 

 2 et 4 postice tuberculis parvulis conicis parum elevatis, 

 tuberculisque duobus ad suturam ante aj)icem instructis." 

 Waterhouse. 



Long. 7 lin., lat. 2| lin. 



Hab. South Australia. 



Mr. Waterhouse gives 8 lines as the length of this insect. I 

 have specimens only G lines long, and the largest I have seen is 

 only 7 lines. 



Both in form and sculpture this species shows a very decided 

 approach to the next genus Gubicorhynchus ; the transition, how- 

 ever, is by no means so easy and complete between that genus 

 and the present one, as in the other and preceding genera. 



