(58 REVISION OF THE AMyC'TERIDE.S, VI., 



Ilab. — Western Australia: Geraldton. 



I liave examined tbe type of A. mi--iconii.y. which is a female, and have 3 S 

 in my possession, one of which was compared with the type; the other two are 

 from Geraldton and were kindly given me by Mr. J. Clark. 



I can only regard A. nasicornis as a variety or geographical race of A. 

 aweolus Bohem.; possibly, however, the males may prove more distinct. 



ACANTHOLOPHUS CRENATIOOLLIS Macl. 

 Macleay, Trans. Ent. Soc. N.S. Wales, i., 1805. p. 28!); A. irroratu^, Macl., 

 " op. cit., p. 328, (1866) . 

 c?. Size moderate; black, rather densely iluthed with Inown subsquamose 

 clothing, variegated' with gi'ey. 



Head concave above, with a pair of small gianules about middle; separated 

 from rostiiim by a transverse groove, running on to inner surface, of crests; the 

 latter broad, tridentate, the anterior lobe strongly convex anteriorly, only separated 

 from median by a slight indentation, often absent, at apex, the median separated 

 from posterior by a deeper notch, the latter longer and more slender, slightly 

 recurved. Rostrum broadly concave above, lightly impressed in median line; 

 external margins with a single acute tubercle projecting forwards; internal ridges 

 and foveae obsolescent. Antennae rather long, second joint noticeably longer 

 than first; club elongate, pedunculate. Prothorax, broad, flat or feebly concave, 

 apex truncate above, ocular lobes absent; median line impressed; disc set with 

 small, rather obscure granules, submedian tubercles not distinct from the granules, 

 excepting tlie basal and sometime^ the subbasal pair; lateral strongly projecting, 

 trianguliform, the median the largest, slightly recurved, with a smaller one an- 

 teriorly, only conjoined at base, posterior slightly smaller than median, with a 

 smaller tubercle more posteriorly. Elytra subparallel on sides for greater part 

 of length; punctures indefinite, transversely confluent; all the interstices with 

 rows of granules, larger on the alternate interstices, distinctly conical on the first, 

 third and fifth posteriorly; humeral angles not advanced, with a row of small 

 granules. Venter flat, moderately closely set with small, grey, decumbent, sub- 

 squamose setae, arising from rather large, foveiform punctures, less marked on 

 apical segment. Legs simple. 



?. Similar, more ovate; elytra broader, more iiioduced and briefly mucronate 

 at apex, the posterior granules on fii-st. third and fifth rows smaller and less 

 conical; venter convex, punctures smaller. Dimetmon-'i: c?. 14 X 5 mm. ; 'i . 15.5 

 X 6 mm. 



llah. — South Australia: Ptirt Lincoln. 



The above description is drawn up from South Australian specimens in my 

 own collection. The type of crenaticollis is a large female, measuring 18 x 7.5 

 mm.; it is stated to be from New South Wales, but I can find no difference be- 

 tween it and South Australian specimens and believe that the locality given is 

 probably wrong. The species is more widely known under the synonym A. 

 irrnratiis Mad., wliich was described from Port Lincoln. T am uncertain wliefher 

 the types of this are in llie Macleay or Australian Museum. 



ACANTlIOI/JI'irUS TERR.AE-REfilXAE U.S]). 



Allied to A. crenaticoUis Macl., but dilifering in tlic supraorbital crests, 

 d". Black: wifli minute, sparse, muddy brown clotliing. 



