BY THOMAS G. SLOANE. 113 



I now believe that I erred on the side of excessive caution in 

 not considering the specimen on which I formed the species E. 

 politus to be E hopei, Casteln. There seems every probability of 

 their being synonymous; Castelnau's slight description of E. 

 hopei is applicable to E. politus, and both being from Central 

 Australia gives additional support to the likelihood of their 

 identity. 



EURYSCAPHUS DILATATUS, Macl. 



Trans. Ent. Soc. N. S. Wales, i. 1865, p.l88; E. 7ninor, Macl., 

 I.e. p.l89: Scaraphitescarhonarius, Casteln., Trans. Roy. Soc. Vict, 

 viii. 1868, p.l30; Sc. affinis, Casteln., I c. p. 130; E. are.narius, SI., 

 Proc. Linn. Soc. N. S. Wales (2), iii. p. 1108. 



I formerly published the synonymy of E. affiyiis, Casteln., and 

 E. arenarius, SL, with E. minor, Macl., and subsequent examina- 

 tion of the types of E. dUdtatus and E. minor in the Australian 

 Museum in comparison with specimens in my possession leads 

 me to consider these as synonymous. 



The type of E. carhonarius, Casteln., was formerly in the 

 Howitt Collection, but is no longer in existence. I saw it in 

 1892j but merely made a note that it was without discoidal 

 punctures on the elytra. The descriptions of E. dilcUatus, Macl., 

 and E. carhonarius, Casteln., have always seemed to me likely to 

 have been founded on the same species, and though absolute 

 certainty cannot now be attained, I believe it will not be wrong 

 to consider them synonymous. 



Genus Philoscaphus, Macleay. 



Trans. Ent. Soc. N. S. Wales, ii. 1871, p.96. 



Having a new species of Philoscaphus to describe, the 

 following table of the genus is given to show its position, and as 

 a help towards the identification of the species. 



Marginal declivity of elytra double — divided longitudinally by an interme- 

 diate costa Ph. cos/aZ^s, Macl. 



Marginal declivity of elytra single. 



8 



