278 THE GENERA AND SPECIES OF AMYCTERIDiE, 



troque impressis, rostro trituberculato tuberculis duobus 

 basalibus connatis spiuiformibus, tborace dorso seriatim 

 acute bifariam tuberculato lateribus parum ampliato tuber- 

 culo trispinoso instructo vitta media lateribusque albo- 

 squamosis, elytris granulatis trifariaiii valide acute tuber- 

 culatis sutara antice vittis duabus disci rectis margiueque 

 laterali albo-squamosis." Schonherr. 



Long. 10 lin., lat. 4 lin. 



Hab. Swan River. 



This, as well as the last species, are such well-marked and 

 well-described insects, that any detailed notice is unnecessary. 

 I may observ^e, however, that they both diflPer from the next 

 species in having the apical dorsal tubercle of the thorax larger 

 than the others. 



13. — ACANTHOLOPHDS HUMERALIS. 



Oblongo-ellipticus niger cinereo-squamosus albido-variegatus, 

 fronte impressa inter oculos utrinque bispinosa spinis 

 connatis posteriore longissima arcuata, thoi'ace dorso 

 biseriatim spinoso spinis subeequalibus lateribus trispi- 

 nosis anterioribus connatis, elytris remote granulatis 

 trifariam tuberculatis spina humerali majore. 



Long. 11 lin., lat. 4| lin. 



Hab. Swan River. 



This species is large, broad, and variegated with lines and 

 spots of silvery scales. The head is short and hollowed out a 

 little in front. Between the eyes on each side there are two 

 connate spines : the anterior short, the posterior very long, 

 sharp, and curved backwards. The thoi'ax has a row of five 

 tubercles, elevated, pointed and equal in size, on each side of the 

 dorsal line, while on the sides there are three spines ; the two 

 anterior connate, the hinder of the two being long, acute, and 

 curved backwards, and the third small, pointed, and placed near 

 the base. The elytra are much broader than the thorax, and 

 more than three times the length, with three rows of acute 

 tubercles on each, the largest being on the humeral angle, while 



