new genera and species of CryptocephalidcB. 225 



the $, of equal length to it in the ?, the outer joints 

 scarcely dilated in either sex. Thorax twice as broad as 

 long at the base ; sides broadly margined, rounded behind 

 the middle, thence obliquely converging to the apex, the 

 anterior angles acute, the hinder ones slightly produced 

 backwards, subacute ; basal margin slightly oblique on 

 either side, the medial lobe broadly truncate ; above con- 

 vex, obliquely impressed on either side at the base, coarsely 

 and deeply but not very closely punctured; lateral margin 

 paler than the disk. Scutellum trigonate, its apex trun- 

 cate, basal margin notched, sui-face smooth, impunctate. 

 Elytra strongly lobed on the sides, contracted behind 

 the middle ; upper surface abruptly thickened round the 

 scutellum, very coarsely and deeply punctured, the punc- 

 tures near the apex arranged in longitudinal strife ; 

 interspaces shining, transversely rugulose, longitudinally 

 subcostate near the apex ; each elytron near the middle 

 with an ovate rufo-fulvous patch, placed rather nearer the 

 suture than the lateral margin. 



Nearly allied to Idiocephala catoxantha, Saunders ; 

 rather larger, the antenna more slender and less distinctly 

 thickened towards the apex in the ? . 



Idiocephala hella. 



Subquadrata, valde convexa, fulva, nitida, pectore abdo- 

 mineque piceo-fulvis ; antennis extrorsum, vertice scutel- 

 loque nigris ; thorace crasse, subremote punctato, utrinque 

 ante basin leviter oblique impresso; elytris crasse punctato- 

 striatis, punctis in striis confuse biseriatim dispositis, ad 

 apicem minus foi'titer impressis, interspatiis transversim 

 rugulosis ; utrisque fascia basali, macula magna pone 

 medium, ad marginem adfixa, margine apicali limboque 

 inflexo nigris. 



Long. 1| lin. 



Hah. — Australia; Cape York. 



Vertex impressed with fine longitudinal strigjE; front 

 finely rugose on either side, its medial portion smooth, 

 impunctate ; antenna rather more than half the length of 

 the body, filiform, very sliglitly thickened towards the apex, 

 the fifth joint piceous, the six outer ones black ; eyes 

 deeply notched. Thorax twice as broad as long; sides 

 rounded and converging from base to apex ; basal margin 

 sinuate on either side, the medial lobe very sliglitly ])ro- 

 duced, entire ; above convex, fiiintly impressed obliquely 



