402 REVISION OF THE AMTCTERIDES, 



Venter feebly transversely convex, with scattered dark setae, and taint 

 traces of median and lateral vittae. 



?. Very similar, somewhat more convex and obese; venter more strongly 

 convex. 



Dimensions : c?. 9 x -1 mm. ; ?. 10x5 mm. 



i?ob.— N.S. Wales: Shelley's Flat (Gonlbuin). Sydney. Portland, Capertee; 

 Victoria: Wandong, Mt. Evelyn; S. Australia; W. Australia. 



The above description is taljen from the types in the Macleay Museum. The 

 species varies somewhat in the rugosities of the head and in the development of 

 the elytral granules. 



P. coNVExruscuu's var. ii.\STERSi Macl. 



Hyhorrhynchus mastersi, Macl., Ti'ans. Ent. Soc. N.S. Wales, i.. 1866, p. 334. 



Very close to P. converiusculus. 



Head with submedian ridges shorter and mere nodules; supraorbital crests 

 slightly smaller, the space between less depressed. Rostrum similar. Antennae 

 with all the joints of the funicle longer and more slender, the club much longer, 

 with an elongate peduncle. Prothorax with median area deeply grooved in 

 centre; submedian tubercles rather smaller. Otherwise a.s in convexiusculus. 



Dim.ensiuns : c?. 0x4 mm.; ?. 10 x 4.5 mm. 



Hab. — South Australia, Fort Lincoln. 



The above description is taken from the specimens in the Macleay Museum. 

 The differences noted when compared with the types of P. convexiusculux become 

 of less importance when a series from various localities is examined. Even the 

 differences in the length of the joints of the funicle do not appear to be constant 

 in Sovith Australian specimens, and it might be better to follow Lea in sinking 

 mastersi as an absolute synonym of convexiusculus. 



Parahyborrhynchus ORA.ssiuscuLrs Macl. 



Macleay, Trans. Ent. Soc. N.S. Wjiles, i., 1866. p. 334. 



c?. Allied to P. convexiusculus Macl. ; comparatively broad, el^'tra parallel- 

 sided. Black; densely clothed with brown and golden brown i>ubescence, varie- 

 gated with gi'ey on elytra; setae long, dark. 



Head convex, witii small, granuliform frontal and supraorbital tubercles, 

 about equal in size, the frontals slightly posterior to the supraorbitals. Rostrum 

 wide, u]:)per surface deeply and widely excavate, the lateral margins raised in 

 middle into a strong rectangular tubercle; with two small, gi'anuliform, basal 

 tubercles, rather widely separated. Antennae slender; funicle with first two 

 joints sube(|ual; club with elongalc base. Eyes subrotundate. coarsely faceted. 



Prothorax with ai)ical margin sliglitly iiroduced above, without ocular l()I)es; 

 disc l)i'oad, exjilanate, witli median line impressed in anterior half, obscurely 

 carinate posteriorly, with small somewhat spareely set granules; submedian 

 tubercles small, obtuse, irregularly arrsmged; lateral margins bituberculate. the 

 anterior t\d)ercle large and triangular, outwardly proji'cting, the posterior smaller, 

 less acute. 



Elytra comparatively broad, sides parallel for the greater portion of their 

 extent; apex rounded, not emarginate nor mucronate; base witli forwardly (iro- 

 jecting processes at ends of the tiifit three interstices; disc with moderately 

 well defined rows of punctures, often laterally c(mfluent; third interstice out- 

 wardly turned at base to join humeral angle; all the inteistices with small, 

 closely set. setigerous graimles. more conspicuous <m third, filth and seventh 



