58 REVISION OF THE AMYCTEBIDES, vi., 



smaller than median one. Elytra with small but evident granules, and with three 

 rows of tubercles; first row with 8, the basal 5 small, rounded, the last '1 — 3 larger 

 and acutely spiniform; second row with tJ, all spiniforin but larger posteriorly, 

 humeral tubercle large and conical, with a much smaller granule anterior to it; 

 third row with 3 large acute spines, the firet the longest ; a pair of acute sub- 

 apical spines also present. Ventral surface with somewhat sparse, white, de- 

 pressed, subsetosc pubescence, mixed with some darker setae, arising from shallow 

 punctures. Legs simple. 



?. Similar, but broader in the body; ventral surface convex. Dimensi</ns: 

 J. 15 X 5 mm. ; ?• 16 x 7 mm. 



Hab. — Western Australia: King George Sound, Esperance. 



In general' appearance resembling a slighter form of A. ■niveovittatus, the 

 present species may be distinguished by the more slender, biramate, supi-aorbital 

 crests. From .4. cra.ssidens it may be se])aTated by the different crests and 

 distinct, subapical, elytral spines. 



AOANTHOLOPHU.S (Tt.'VSSIDENS Macl. 



Macleay, Trans. Ent. Soc. N.S. Wales, i.. 186,5. p. 276. 



c?. Moderately large; black, with very minute scanty brownish clothing and 

 with whitish subsquamose pubescence, forming interrupted vittae along median 

 line of prothorax and elytia, along lateral margins of elytra, and on sides of pro- 

 thorax and along inferior border of sides of elyira. 



Head concave in front, with strongly raised intercristal ridge; supraorbital 

 crests large, biramate, the intercristal ridge i-unning into the base of the posterior 

 branch which is stout at base and tapers to a fine point, curving outwards and 

 upwards with a slight inclination backwards, the anterior branch much shorter 

 and blunter, projecting foi-wards with the apex briefly upturned, crests, a-s viewed 

 from in front, strongly outwardly divergent. Rostrum rather deeply C(mcave 

 above, with a nairow median carina in dei)th: lateral margins with a sti'ong 

 conical tubercle about middle ; internal ridges little distinct, rather widely separ- 

 ated at base- Antennae long and slender, first joint of funicde shorter th;in 

 second, club with rather long peduncle. Prothorax with submedian row of 

 tubercles in single series, approximately ef|ual in size, the first stouter but not 

 longer than the others, all erect, but rather obtuse, an additional small tubercle 

 present external to the fourth in the row; lateral tubercles much .is in A. lii/pn- 

 leuctis, but somewhat shorter and less acute, the median one .icutely spinifonn 

 and rather strongly curved backwards, with a .small one conjoined anteriorly, and 

 the posterior shorter and blunter than the median. Elytra broader and flatter 

 than in ,1. hypnleticus, with three rows of spiniform tubercles, the first row with 

 6, the basal ones smaller and rounded, the apical one large and acute; second row 

 with 6, all acute, but thq posterior ones birgcr and more siiinifomi; humeral 

 tubercle large and conical; third row with 3 large spinifonn tubercles, outwardly 

 projecting, the first the largest; also with a pair of small, spiculiform, subapical 

 tul>ercles, sometimes with a row of spicules extending up declivity to last 

 tubercle of third row. Venter with clothing and punctures as in .1. lu/poleucus. 

 Legs simple. 



5. Similar, more robust and convex on ventral surface. Dimensions: d. 16 

 X 6 mm.; 9. 17 X 7., 5 „„n. 



Hah. — Western Australia: King George Smind. 



