BY EUSTACE W. FERGUSOX. 51 



noticeably smaller than in typical specimens; tmly first two tubercles of third row 

 distinct. Dimens-iovs: d". 13.5 X 5 mm-; 9. 16.5 X 6.5 mm. 



Hub. — South Australia: Wirha (Mallee District). Pinnaroo. 



ACANTHOLOPHUS KREFFTI Macl. 



Macleay. Trans. Ent. Soc X.S. Wales, i., 1865, p. 288. 



d". Size moderate; densely covered witli light brown subpubescenee, varie- 

 gate with grey. 



Head deeply concave, with strongly raised intercristal ridge; supraorbital 

 crests composed of two long, erect, spinose processes, projecting forwards and 

 upwards, conjoined at base, the intercristal ridge running into the anterior process, 

 the posterior situated farther outwards. Rostnim not very deeply concave above, 

 the external margins with a strong sharp spine about middle; internal ridges 

 raised, convergent ; basal foveae rather lai-ge. Antennae with first joint of 

 f unicle longer than second ; club not pedunculate. Prothorax furnished with a 

 row of long erect spines on each side of median area; the fii'st projecting over 

 the head, then curved upwards, the others erect, the sub-basal the longest; lateral 

 margins with a single, large, acute, outwardly projecting spine in middle, and a 

 smaU acute spicule posteriorly. Elytra with moderately large granules, ob- 

 scured by clothing, larger on second interstice and spicuUform near declivity; 

 tubercles strongly spiniform, first row with 6, the basal ones small, but erect, and 

 bearing long setae, the posterior two or three large and acutely spiniform ; second 

 row with 6, all acute .spines, but larger posteriorly and descending to a lower 

 level on declivity; humeral angle with a large acute spine; third row with 4 acute 

 spines, the first much the largest, the fourth a small spicule. Venter with rather 

 sparse black setae in middle and traces of denser yellowish subpubescenee at sides- 

 Intermediate tibiae with a rather feeble subapical notch; posterior tibiae with a 

 strong apical process projecting foi-wards from anterior margin. 



?. Larger and more ovate, el\i:ra witli more numerous tubercles, second in- 

 teretice with two or three acute sjiines in front of deelirity ; first row with 7 spines, 

 only the last 3 large ; second vnth 7 ; third with 4. Venter convex. Legs simple ; 

 posterior tibiae as in c?, but process rather smaller. Dimenxions: cT. 14 X 5.5; ?. 

 16 X 7.5 mm. 



Hal). — Queensland : Peak Downs. 



The above description is taken from the Macleay Museum specimens, but 

 probably the Australian Museum specimens should be regarded as the actual 

 types. 



Apart from the following species, A. krejfti Macl. seems to have little re- 

 lationship to otiier described forms. It is one of the most strongly spinose species, 

 and in this respect resemljles the western memliers of the genus. 



ACANTHOLOPHU.S DODDI, n.Sp. 



Closely allied to ^4. kreffti Macl., but smaller, with less acute tubercles. 



c?- Small, elongate, subeylindrical. Black, more or less densely clothed 

 with greyish subpubescenee. 



Rostrum rather deeply excavate anteriorly; external margins raised anter- 

 iorly into a strong, subtriangular, acute spine; internal ridges low, but distinct, 

 basal foveae rather shallow, distinct, closed externally. Head concave in front; 

 supraorbital crest arising by a rather narrow stalk, divided into two rami, the 



