Head concave between eyes; on each side at its junction with 

 rostrum with a strongly elevated, simple tubercle, obliquely trun- 

 cated at summit. Each side of base of rostrum with a deep, 

 triangular, closed fovea, its apex mai'ked by a feeble subtriangular 

 tubercle. Prothorax flattened, sides obtusely and irregularly serrated, 

 disc with small granules and very obtuse tubercles; each side of 

 middle in front of subapical constriction with a ridge, notched 

 near its base, sometimes twice notched or even not notched ; just 

 outside of each ridge a rather small but acute tubercle. Elytra each 

 with a feeble row of rather small subconical tubercles, the two 

 inner rows gradually increasing in size posteriorly, the outer row 

 anteriorly; with rather large, but shallow punctures, each marked 

 by feeble granules, but with a fe\y conspicuous granules on suture 

 near base. Length 14 1/2-15 1/2 mill. 



Hab. : S. Australia (Belgian Museum). 



Two of the five specimens before me are labelled « Austr. int. 

 Waterh. » and another (also labelled planicollis) Adelaide (? Adelaide 

 River). 



Belongs to the group -Ahowi planicollis, but readily distinguished 

 from that species and from denticollis, crenaticollis, serraticollis and 

 the description of simplex and granidatns, by the closed triangular 

 fovea on each side of base of rostrum. The simple tubercle over 

 each eye and absence of small tubercles at summit of posterior 

 declivity are also distinctive features. D'' Ferguson informs me that 

 it is not in the Australian or Macleay Museum collections. 



The inner row of tubercles on each elytron varies in number 

 from five to seven, the median from five to six, and the outer from 

 four to seven. The male differs from the female in being narrower, 

 with the elytra less ovate and the tubercles larger, the front femora 

 suddenly and almost angularly dilated on the lower surface near 

 apex, and the middle tibiae strongly notched near apex. 



590. ACANTHOLOPHUS MARSHAMI Kirby. 



There are six specimens of this species in the Museum. One 

 bears a label Acantholophns cristatus Macl. (evidently W. S. Mac- 

 leay and an M. S. name). Another is labelled cristatus Macleay, 

 with echinatus Dej., Marshami ? Kirby and sepidioides Latr. given 

 as synonyms. The species, however, standing under the names of 

 Marshami and echinatus in the Macleay Museum and my own col- 

 lection are different, although allied. There is no Acantholophus 

 sepidioides in Masters' Catalogue, but there is a Cubicorrhynchns 

 sepidioides and a Dialeptopus sepidioides, which have no possible 



