BY W. MACLEAY, JUN., ESQ. 273 



striolato-rugosa utrinque tubei'culo conico instructa, tlio- 

 race lateribus paulo rotundato quadii-spinoso dorso canali- 

 culato crebfe granulato tuberculo apicali utrinque munito 

 linea augusta media pallidius squamosa decorate, elytris 

 seriatim grauulatis bifariam minus alte tubcrculatis tuber- 

 culo pone bumeros solitario instructis apice divaricatis 

 singulatim breviter mucronatis." Schonherr. 



Long. $ 7 lin., lat. 2\ lin. 



Hab. King George's Sound. 



The subliumeral spine is of itself an unfailing means of 

 recognising this species ; it differs also in many respects from 

 the previously-described insects : the dorsal tubercles of the 

 thorax are almost wanting, the tubercles on the elytra are 

 smaller, and the apex of the elytra is what I should call strongly 

 mucronate and dehiscent. My specimens of the last three 

 species came from King George's Sound, but it is very likely 

 that they are found also at Swan River. 



Sect. 2. 

 With compound tubercle over the eye. 



A. With two rows of tubercles on each elytron, under four 

 tubercles on the third row. 



5. — ACANTHOLOPHUS HTSTRIX. Schouh. 

 AmycteruB hystrix, Sclionh., Gen. et Spec. Curcul., vol. VII., p. 78. 



" Oblongo-ellipticns convexus niger cinereo-squamulosus, fronte 

 impressa utrinque spinis duabus connatis arcuatis in- 

 structa, rostro supra piano, thorace ante medium modice 

 rotundato posterius augustiore albo-trivittato lateiibus 

 quadri- dorso utrinque quinque-spinoso, elytris convexis 

 dorso obsolete lateribus arcuatim profundius striato-punc- 

 tatis singulo trifariam acute spinuloso sutura signaturis 

 lateralibus albo-squamosis decoratis, pedibus ferrugineis." 

 Schonherr. 



Long. 5 lin., lat. 2 lin. 

 Hab. Western Australia. 



