76 Mr. G. R. Wateihouse's Notes 



B. With two rows of tubercles, and 

 with but two well-developed tu- 

 bercles in place of the four, or 

 more, of outer row in sect. A.. . liyslrix. 



hivittatas. 

 II. With simple tubercle over the eye, and 

 two approximated acute tubercles at 



base of rostrum ccenosus. 



III. With simple tubercle over tlie eye: 



A. Thorax depressed, the sides pro- 

 duced into lateral spines, or into 

 a dentate ridge : 



a. With three rows of tubercles 



on each elytron dumosus. 



b. With two rows of tubercles 



to each elytron, and a single 

 post-humeral lateral spine aureolus. 



c. Elytra subgranular — no 



strongly developed tuber- 

 cles granulatus. 



B. Thorax more or less convex, and 



without distinct lateral ridges . . Boltemani. 



scolob'ioldes, Hope. 



morosus, Germ. 



Dohrnii, Wat. nov. sp. 



cre?i?co///s,W^at.nov.sp. 



The species forming this last section (III. B.) are intermediate 



in their characters between Amycteriis and Acantholophus, and 



perhaps on the whole would be better placed in the former genus. 



They form a natural little group ; all the species have the rostrum 



more or less crested or ridged at the sides, the ridge most elevated 



above the eye. Of the A. scotohioides of Hope's MSS. I have 



but a short note, to the effect that it c\o&e\y re?,emh\es A. Bohemani 



in its general characters, but is distinguished by the elytra being 



bent suddenly down at the apex, so as to form a right angle with 



the dorsal surface ; and that at this part the elytra have, on either 



side, a distinct tubercular keel or ridge ; the ridge commences on 



the fifth interstice of the striae, towards the middle, and vanishes 



before reaching the apex. 



Acantholophus Adelaidce. 

 Ac. oblongus ater, fusco-squamosus, fronte utrinque tuberculis 

 duobus basalibus subspiniformibus, connatis, instructo ; tho- 

 race dorso seriatim bifariam tuberculato, lateribus acute tri- 



